deps(server): version bump

Reviewed-on: #95

docs/superpowers/plans/2026-03-28-grant-grid-view.md

@@ -1,821 +0,0 @@
-# Grant Grid View Implementation Plan
-
-> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
-
-**Goal:** Add an "EVM Grants" dashboard tab that displays all grants as enriched cards (type, chain, wallet address, client name) with per-card revoke support.
-
-**Architecture:** A new `walletAccessListProvider` fetches wallet accesses with their DB row IDs. The screen (`grants.dart`) watches only `evmGrantsProvider` for top-level state. Each `GrantCard` widget (its own file) watches enrichment providers (`walletAccessListProvider`, `evmProvider`, `sdkClientsProvider`) and the revoke mutation directly — keeping rebuilds scoped to the card. The screen is registered as a dashboard tab in `AdaptiveScaffold`.
-
-**Tech Stack:** Flutter, Riverpod (`riverpod_annotation` + `build_runner` codegen), `sizer` (adaptive sizing), `auto_route`, Protocol Buffers (Dart), `Palette` design tokens.
-
----
-
-## File Map
-
-| File | Action | Responsibility |
-|---|---|---|
-| `operator/lib/theme/palette.dart` | Modify | Add `Palette.token` (indigo accent for token-transfer cards) |
-| `operator/lib/features/connection/evm/wallet_access.dart` | Modify | Add `listAllWalletAccesses()` function |
-| `operator/lib/providers/sdk_clients/wallet_access_list.dart` | Create | `WalletAccessListProvider` — fetches full wallet access list with IDs |
-| `operator/lib/screens/dashboard/evm/grants/widgets/grant_card.dart` | Create | `GrantCard` widget — watches enrichment providers + revoke mutation; one card per grant |
-| `operator/lib/screens/dashboard/evm/grants/grants.dart` | Create | `EvmGrantsScreen` — watches `evmGrantsProvider`; handles loading/error/empty/data states; renders `GrantCard` list |
-| `operator/lib/router.dart` | Modify | Register `EvmGrantsRoute` in dashboard children |
-| `operator/lib/screens/dashboard.dart` | Modify | Add Grants entry to `routes` list and `NavigationDestination` list |
-
----
-
-## Task 1: Add `Palette.token`
-
-**Files:**
-- Modify: `operator/lib/theme/palette.dart`
-
-- [ ] **Step 1: Add the color**
-
-Replace the contents of `operator/lib/theme/palette.dart` with:
-
-```dart
-import 'package:flutter/material.dart';
-
-class Palette {
-  static const ink = Color(0xFF15263C);
-  static const coral = Color(0xFFE26254);
-  static const cream = Color(0xFFFFFAF4);
-  static const line = Color(0x1A15263C);
-  static const token = Color(0xFF5C6BC0);
-}
-```
-
-- [ ] **Step 2: Verify**
-
-```sh
-cd operator && flutter analyze lib/theme/palette.dart
-```
-
-Expected: no issues.
-
-- [ ] **Step 3: Commit**
-
-```sh
-jj describe -m "feat(theme): add Palette.token for token-transfer grant cards"
-jj new
-```
-
----
-
-## Task 2: Add `listAllWalletAccesses` feature function
-
-**Files:**
-- Modify: `operator/lib/features/connection/evm/wallet_access.dart`
-
-`readClientWalletAccess` (existing) filters the list to one client's wallet IDs and returns `Set<int>`. This new function returns the complete unfiltered list with row IDs so the grant cards can resolve wallet_access_id → wallet + client.
-
-- [ ] **Step 1: Append function**
-
-Add at the bottom of `operator/lib/features/connection/evm/wallet_access.dart`:
-
-```dart
-Future<List<SdkClientWalletAccess>> listAllWalletAccesses(
-  Connection connection,
-) async {
-  final response = await connection.ask(
-    OperatorRequest(listWalletAccess: Empty()),
-  );
-  if (!response.hasListWalletAccessResponse()) {
-    throw Exception(
-      'Expected list wallet access response, got ${response.whichPayload()}',
-    );
-  }
-  return response.listWalletAccessResponse.accesses.toList(growable: false);
-}
-```
-
-Each returned `SdkClientWalletAccess` has:
-- `.id` — the `evm_wallet_access` row ID (same value as `wallet_access_id` in a `GrantEntry`)
-- `.access.walletId` — the EVM wallet DB ID
-- `.access.sdkClientId` — the SDK client DB ID
-
-- [ ] **Step 2: Verify**
-
-```sh
-cd operator && flutter analyze lib/features/connection/evm/wallet_access.dart
-```
-
-Expected: no issues.
-
-- [ ] **Step 3: Commit**
-
-```sh
-jj describe -m "feat(evm): add listAllWalletAccesses feature function"
-jj new
-```
-
----
-
-## Task 3: Create `WalletAccessListProvider`
-
-**Files:**
-- Create: `operator/lib/providers/sdk_clients/wallet_access_list.dart`
-- Generated: `operator/lib/providers/sdk_clients/wallet_access_list.g.dart`
-
-Mirrors the structure of `EvmGrants` in `providers/evm/evm_grants.dart` — class-based `@riverpod` with a `refresh()` method.
-
-- [ ] **Step 1: Write the provider**
-
-Create `operator/lib/providers/sdk_clients/wallet_access_list.dart`:
-
-```dart
-import 'package:arbiter/features/connection/evm/wallet_access.dart';
-import 'package:arbiter/proto/operator.pb.dart';
-import 'package:arbiter/providers/connection/connection_manager.dart';
-import 'package:mtcore/markettakers.dart';
-import 'package:riverpod_annotation/riverpod_annotation.dart';
-
-part 'wallet_access_list.g.dart';
-
-@riverpod
-class WalletAccessList extends _$WalletAccessList {
-  @override
-  Future<List<SdkClientWalletAccess>?> build() async {
-    final connection = await ref.watch(connectionManagerProvider.future);
-    if (connection == null) {
-      return null;
-    }
-
-    try {
-      return await listAllWalletAccesses(connection);
-    } catch (e, st) {
-      talker.handle(e, st);
-      rethrow;
-    }
-  }
-
-  Future<void> refresh() async {
-    final connection = await ref.read(connectionManagerProvider.future);
-    if (connection == null) {
-      state = const AsyncData(null);
-      return;
-    }
-
-    state = const AsyncLoading();
-    state = await AsyncValue.guard(() => listAllWalletAccesses(connection));
-  }
-}
-```
-
-- [ ] **Step 2: Run code generation**
-
-```sh
-cd operator && dart run build_runner build --delete-conflicting-outputs
-```
-
-Expected: `operator/lib/providers/sdk_clients/wallet_access_list.g.dart` created. No errors.
-
-- [ ] **Step 3: Verify**
-
-```sh
-cd operator && flutter analyze lib/providers/sdk_clients/
-```
-
-Expected: no issues.
-
-- [ ] **Step 4: Commit**
-
-```sh
-jj describe -m "feat(providers): add WalletAccessListProvider"
-jj new
-```
-
----
-
-## Task 4: Create `GrantCard` widget
-
-**Files:**
-- Create: `operator/lib/screens/dashboard/evm/grants/widgets/grant_card.dart`
-
-This widget owns all per-card logic: enrichment lookups, revoke action, and rebuild scope. The screen only passes it a `GrantEntry` — the card fetches everything else itself.
-
-**Key types:**
-- `GrantEntry` (from `proto/evm.pb.dart`): `.id`, `.shared.walletAccessId`, `.shared.chainId`, `.specific.whichGrant()`
-- `SpecificGrant_Grant.etherTransfer` / `.tokenTransfer` — enum values for the oneof
-- `SdkClientWalletAccess` (from `proto/operator.pb.dart`): `.id`, `.access.walletId`, `.access.sdkClientId`
-- `WalletEntry` (from `proto/evm.pb.dart`): `.id`, `.address` (List<int>)
-- `SdkClientEntry` (from `proto/operator.pb.dart`): `.id`, `.info.name`
-- `revokeEvmGrantMutation` — `Mutation<void>` (global; all revoke buttons disable together while any revoke is in flight)
-- `executeRevokeEvmGrant(ref, grantId: int)` — `Future<void>`
-
-- [ ] **Step 1: Write the widget**
-
-Create `operator/lib/screens/dashboard/evm/grants/widgets/grant_card.dart`:
-
-```dart
-import 'package:arbiter/proto/evm.pb.dart';
-import 'package:arbiter/proto/operator.pb.dart';
-import 'package:arbiter/providers/evm/evm.dart';
-import 'package:arbiter/providers/evm/evm_grants.dart';
-import 'package:arbiter/providers/sdk_clients/list.dart';
-import 'package:arbiter/providers/sdk_clients/wallet_access_list.dart';
-import 'package:arbiter/theme/palette.dart';
-import 'package:flutter/material.dart';
-import 'package:hooks_riverpod/experimental/mutation.dart';
-import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:sizer/sizer.dart';
-
-String _shortAddress(List<int> bytes) {
-  final hex = bytes.map((b) => b.toRadixString(16).padLeft(2, '0')).join();
-  return '0x${hex.substring(0, 6)}...${hex.substring(hex.length - 4)}';
-}
-
-String _formatError(Object error) {
-  final message = error.toString();
-  if (message.startsWith('Exception: ')) {
-    return message.substring('Exception: '.length);
-  }
-  return message;
-}
-
-class GrantCard extends ConsumerWidget {
-  const GrantCard({super.key, required this.grant});
-
-  final GrantEntry grant;
-
-  @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    // Enrichment lookups — each watch scopes rebuilds to this card only
-    final walletAccesses =
-        ref.watch(walletAccessListProvider).asData?.value ?? const [];
-    final wallets = ref.watch(evmProvider).asData?.value ?? const [];
-    final clients = ref.watch(sdkClientsProvider).asData?.value ?? const [];
-    final revoking = ref.watch(revokeEvmGrantMutation) is MutationPending;
-
-    final isEther =
-        grant.specific.whichGrant() == SpecificGrant_Grant.etherTransfer;
-    final accent = isEther ? Palette.coral : Palette.token;
-    final typeLabel = isEther ? 'Ether' : 'Token';
-    final theme = Theme.of(context);
-    final muted = Palette.ink.withValues(alpha: 0.62);
-
-    // Resolve wallet_access_id → wallet address + client name
-    final accessById = <int, SdkClientWalletAccess>{
-      for (final a in walletAccesses) a.id: a,
-    };
-    final walletById = <int, WalletEntry>{
-      for (final w in wallets) w.id: w,
-    };
-    final clientNameById = <int, String>{
-      for (final c in clients) c.id: c.info.name,
-    };
-
-    final accessId = grant.shared.walletAccessId;
-    final access = accessById[accessId];
-    final wallet = access != null ? walletById[access.access.walletId] : null;
-
-    final walletLabel = wallet != null
-        ? _shortAddress(wallet.address)
-        : 'Access #$accessId';
-
-    final clientLabel = () {
-      if (access == null) return '';
-      final name = clientNameById[access.access.sdkClientId] ?? '';
-      return name.isEmpty ? 'Client #${access.access.sdkClientId}' : name;
-    }();
-
-    void showError(String message) {
-      if (!context.mounted) return;
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text(message), behavior: SnackBarBehavior.floating),
-      );
-    }
-
-    Future<void> revoke() async {
-      try {
-        await executeRevokeEvmGrant(ref, grantId: grant.id);
-      } catch (e) {
-        showError(_formatError(e));
-      }
-    }
-
-    return Container(
-      decoration: BoxDecoration(
-        borderRadius: BorderRadius.circular(24),
-        color: Palette.cream.withValues(alpha: 0.92),
-        border: Border.all(color: Palette.line),
-      ),
-      child: IntrinsicHeight(
-        child: Row(
-          crossAxisAlignment: CrossAxisAlignment.stretch,
-          children: [
-            // Accent strip
-            Container(
-              width: 0.8.w,
-              decoration: BoxDecoration(
-                color: accent,
-                borderRadius: const BorderRadius.horizontal(
-                  left: Radius.circular(24),
-                ),
-              ),
-            ),
-            // Card body
-            Expanded(
-              child: Padding(
-                padding: EdgeInsets.symmetric(
-                  horizontal: 1.6.w,
-                  vertical: 1.4.h,
-                ),
-                child: Column(
-                  crossAxisAlignment: CrossAxisAlignment.start,
-                  children: [
-                    // Row 1: type badge · chain · spacer · revoke button
-                    Row(
-                      children: [
-                        Container(
-                          padding: EdgeInsets.symmetric(
-                            horizontal: 1.w,
-                            vertical: 0.4.h,
-                          ),
-                          decoration: BoxDecoration(
-                            color: accent.withValues(alpha: 0.15),
-                            borderRadius: BorderRadius.circular(8),
-                          ),
-                          child: Text(
-                            typeLabel,
-                            style: theme.textTheme.labelSmall?.copyWith(
-                              color: accent,
-                              fontWeight: FontWeight.w800,
-                            ),
-                          ),
-                        ),
-                        SizedBox(width: 1.w),
-                        Container(
-                          padding: EdgeInsets.symmetric(
-                            horizontal: 1.w,
-                            vertical: 0.4.h,
-                          ),
-                          decoration: BoxDecoration(
-                            color: Palette.ink.withValues(alpha: 0.06),
-                            borderRadius: BorderRadius.circular(8),
-                          ),
-                          child: Text(
-                            'Chain ${grant.shared.chainId}',
-                            style: theme.textTheme.labelSmall?.copyWith(
-                              color: muted,
-                              fontWeight: FontWeight.w700,
-                            ),
-                          ),
-                        ),
-                        const Spacer(),
-                        if (revoking)
-                          SizedBox(
-                            width: 1.8.h,
-                            height: 1.8.h,
-                            child: CircularProgressIndicator(
-                              strokeWidth: 2,
-                              color: Palette.coral,
-                            ),
-                          )
-                        else
-                          OutlinedButton.icon(
-                            onPressed: revoke,
-                            style: OutlinedButton.styleFrom(
-                              foregroundColor: Palette.coral,
-                              side: BorderSide(
-                                color: Palette.coral.withValues(alpha: 0.4),
-                              ),
-                              padding: EdgeInsets.symmetric(
-                                horizontal: 1.w,
-                                vertical: 0.6.h,
-                              ),
-                              shape: RoundedRectangleBorder(
-                                borderRadius: BorderRadius.circular(10),
-                              ),
-                            ),
-                            icon: const Icon(Icons.block_rounded, size: 16),
-                            label: const Text('Revoke'),
-                          ),
-                      ],
-                    ),
-                    SizedBox(height: 0.8.h),
-                    // Row 2: wallet address · client name
-                    Row(
-                      children: [
-                        Text(
-                          walletLabel,
-                          style: theme.textTheme.bodySmall?.copyWith(
-                            color: Palette.ink,
-                            fontFamily: 'monospace',
-                          ),
-                        ),
-                        Padding(
-                          padding: EdgeInsets.symmetric(horizontal: 0.8.w),
-                          child: Text(
-                            '·',
-                            style: theme.textTheme.bodySmall
-                                ?.copyWith(color: muted),
-                          ),
-                        ),
-                        Expanded(
-                          child: Text(
-                            clientLabel,
-                            maxLines: 1,
-                            overflow: TextOverflow.ellipsis,
-                            style: theme.textTheme.bodySmall
-                                ?.copyWith(color: muted),
-                          ),
-                        ),
-                      ],
-                    ),
-                  ],
-                ),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
-```
-
-- [ ] **Step 2: Verify**
-
-```sh
-cd operator && flutter analyze lib/screens/dashboard/evm/grants/widgets/grant_card.dart
-```
-
-Expected: no issues.
-
-- [ ] **Step 3: Commit**
-
-```sh
-jj describe -m "feat(grants): add GrantCard widget with self-contained enrichment"
-jj new
-```
-
----
-
-## Task 5: Create `EvmGrantsScreen`
-
-**Files:**
-- Create: `operator/lib/screens/dashboard/evm/grants/grants.dart`
-
-The screen watches only `evmGrantsProvider` for top-level state (loading / error / no connection / empty / data). When there is data it renders a list of `GrantCard` widgets — each card manages its own enrichment subscriptions.
-
-- [ ] **Step 1: Write the screen**
-
-Create `operator/lib/screens/dashboard/evm/grants/grants.dart`:
-
-```dart
-import 'package:arbiter/proto/evm.pb.dart';
-import 'package:arbiter/providers/evm/evm_grants.dart';
-import 'package:arbiter/providers/sdk_clients/wallet_access_list.dart';
-import 'package:arbiter/router.gr.dart';
-import 'package:arbiter/screens/dashboard/evm/grants/widgets/grant_card.dart';
-import 'package:arbiter/theme/palette.dart';
-import 'package:arbiter/widgets/page_header.dart';
-import 'package:auto_route/auto_route.dart';
-import 'package:flutter/material.dart';
-import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:sizer/sizer.dart';
-
-String _formatError(Object error) {
-  final message = error.toString();
-  if (message.startsWith('Exception: ')) {
-    return message.substring('Exception: '.length);
-  }
-  return message;
-}
-
-// ─── State panel ──────────────────────────────────────────────────────────────
-
-class _StatePanel extends StatelessWidget {
-  const _StatePanel({
-    required this.icon,
-    required this.title,
-    required this.body,
-    this.actionLabel,
-    this.onAction,
-    this.busy = false,
-  });
-
-  final IconData icon;
-  final String title;
-  final String body;
-  final String? actionLabel;
-  final Future<void> Function()? onAction;
-  final bool busy;
-
-  @override
-  Widget build(BuildContext context) {
-    final theme = Theme.of(context);
-
-    return Container(
-      decoration: BoxDecoration(
-        borderRadius: BorderRadius.circular(24),
-        color: Palette.cream.withValues(alpha: 0.92),
-        border: Border.all(color: Palette.line),
-      ),
-      child: Padding(
-        padding: EdgeInsets.all(2.8.h),
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            if (busy)
-              SizedBox(
-                width: 2.8.h,
-                height: 2.8.h,
-                child: const CircularProgressIndicator(strokeWidth: 2.5),
-              )
-            else
-              Icon(icon, size: 34, color: Palette.coral),
-            SizedBox(height: 1.8.h),
-            Text(
-              title,
-              style: theme.textTheme.headlineSmall?.copyWith(
-                color: Palette.ink,
-                fontWeight: FontWeight.w800,
-              ),
-            ),
-            SizedBox(height: 1.h),
-            Text(
-              body,
-              style: theme.textTheme.bodyLarge?.copyWith(
-                color: Palette.ink.withValues(alpha: 0.72),
-                height: 1.5,
-              ),
-            ),
-            if (actionLabel != null && onAction != null) ...[
-              SizedBox(height: 2.h),
-              OutlinedButton.icon(
-                onPressed: () => onAction!(),
-                icon: const Icon(Icons.refresh),
-                label: Text(actionLabel!),
-              ),
-            ],
-          ],
-        ),
-      ),
-    );
-  }
-}
-
-// ─── Grant list ───────────────────────────────────────────────────────────────
-
-class _GrantList extends StatelessWidget {
-  const _GrantList({required this.grants});
-
-  final List<GrantEntry> grants;
-
-  @override
-  Widget build(BuildContext context) {
-    return Column(
-      children: [
-        for (var i = 0; i < grants.length; i++)
-          Padding(
-            padding: EdgeInsets.only(
-              bottom: i == grants.length - 1 ? 0 : 1.8.h,
-            ),
-            child: GrantCard(grant: grants[i]),
-          ),
-      ],
-    );
-  }
-}
-
-// ─── Screen ───────────────────────────────────────────────────────────────────
-
-@RoutePage()
-class EvmGrantsScreen extends ConsumerWidget {
-  const EvmGrantsScreen({super.key});
-
-  @override
-  Widget build(BuildContext context, WidgetRef ref) {
-    // Screen watches only the grant list for top-level state decisions
-    final grantsAsync = ref.watch(evmGrantsProvider);
-
-    Future<void> refresh() async {
-      await Future.wait([
-        ref.read(evmGrantsProvider.notifier).refresh(),
-        ref.read(walletAccessListProvider.notifier).refresh(),
-      ]);
-    }
-
-    void showMessage(String message) {
-      if (!context.mounted) return;
-      ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text(message), behavior: SnackBarBehavior.floating),
-      );
-    }
-
-    Future<void> safeRefresh() async {
-      try {
-        await refresh();
-      } catch (e) {
-        showMessage(_formatError(e));
-      }
-    }
-
-    final grantsState = grantsAsync.asData?.value;
-    final grants = grantsState?.grants;
-
-    final content = switch (grantsAsync) {
-      AsyncLoading() when grantsState == null => const _StatePanel(
-        icon: Icons.hourglass_top,
-        title: 'Loading grants',
-        body: 'Pulling grant registry from Arbiter.',
-        busy: true,
-      ),
-      AsyncError(:final error) => _StatePanel(
-        icon: Icons.sync_problem,
-        title: 'Grant registry unavailable',
-        body: _formatError(error),
-        actionLabel: 'Retry',
-        onAction: safeRefresh,
-      ),
-      AsyncData(:final value) when value == null => _StatePanel(
-        icon: Icons.portable_wifi_off,
-        title: 'No active server connection',
-        body: 'Reconnect to Arbiter to list EVM grants.',
-        actionLabel: 'Refresh',
-        onAction: safeRefresh,
-      ),
-      _ when grants != null && grants.isEmpty => _StatePanel(
-        icon: Icons.policy_outlined,
-        title: 'No grants yet',
-        body: 'Create a grant to allow SDK clients to sign transactions.',
-        actionLabel: 'Create grant',
-        onAction: () => context.router.push(const CreateEvmGrantRoute()),
-      ),
-      _ => _GrantList(grants: grants ?? const []),
-    };
-
-    return Scaffold(
-      body: SafeArea(
-        child: RefreshIndicator.adaptive(
-          color: Palette.ink,
-          backgroundColor: Colors.white,
-          onRefresh: safeRefresh,
-          child: ListView(
-            physics: const BouncingScrollPhysics(
-              parent: AlwaysScrollableScrollPhysics(),
-            ),
-            padding: EdgeInsets.fromLTRB(2.4.w, 2.4.h, 2.4.w, 3.2.h),
-            children: [
-              PageHeader(
-                title: 'EVM Grants',
-                isBusy: grantsAsync.isLoading,
-                actions: [
-                  FilledButton.icon(
-                    onPressed: () =>
-                        context.router.push(const CreateEvmGrantRoute()),
-                    icon: const Icon(Icons.add_rounded),
-                    label: const Text('Create grant'),
-                  ),
-                  SizedBox(width: 1.w),
-                  OutlinedButton.icon(
-                    onPressed: safeRefresh,
-                    style: OutlinedButton.styleFrom(
-                      foregroundColor: Palette.ink,
-                      side: BorderSide(color: Palette.line),
-                      padding: EdgeInsets.symmetric(
-                        horizontal: 1.4.w,
-                        vertical: 1.2.h,
-                      ),
-                      shape: RoundedRectangleBorder(
-                        borderRadius: BorderRadius.circular(14),
-                      ),
-                    ),
-                    icon: const Icon(Icons.refresh, size: 18),
-                    label: const Text('Refresh'),
-                  ),
-                ],
-              ),
-              SizedBox(height: 1.8.h),
-              content,
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-}
-```
-
-- [ ] **Step 2: Verify**
-
-```sh
-cd operator && flutter analyze lib/screens/dashboard/evm/grants/
-```
-
-Expected: no issues.
-
-- [ ] **Step 3: Commit**
-
-```sh
-jj describe -m "feat(grants): add EvmGrantsScreen"
-jj new
-```
-
----
-
-## Task 6: Wire router and dashboard tab
-
-**Files:**
-- Modify: `operator/lib/router.dart`
-- Modify: `operator/lib/screens/dashboard.dart`
-- Regenerated: `operator/lib/router.gr.dart`
-
-- [ ] **Step 1: Add route to `router.dart`**
-
-Replace the contents of `operator/lib/router.dart` with:
-
-```dart
-import 'package:auto_route/auto_route.dart';
-
-import 'router.gr.dart';
-
-@AutoRouterConfig(generateForDir: ['lib/screens'])
-class Router extends RootStackRouter {
-  @override
-  List<AutoRoute> get routes => [
-    AutoRoute(page: Bootstrap.page, path: '/bootstrap', initial: true),
-    AutoRoute(page: ServerInfoSetupRoute.page, path: '/server-info'),
-    AutoRoute(page: ServerConnectionRoute.page, path: '/server-connection'),
-    AutoRoute(page: VaultSetupRoute.page, path: '/vault'),
-    AutoRoute(page: ClientDetailsRoute.page, path: '/clients/:clientId'),
-    AutoRoute(page: CreateEvmGrantRoute.page, path: '/evm-grants/create'),
-
-    AutoRoute(
-      page: DashboardRouter.page,
-      path: '/dashboard',
-      children: [
-        AutoRoute(page: EvmRoute.page, path: 'evm'),
-        AutoRoute(page: ClientsRoute.page, path: 'clients'),
-        AutoRoute(page: EvmGrantsRoute.page, path: 'grants'),
-        AutoRoute(page: AboutRoute.page, path: 'about'),
-      ],
-    ),
-  ];
-}
-```
-
-- [ ] **Step 2: Update `dashboard.dart`**
-
-In `operator/lib/screens/dashboard.dart`, replace the `routes` constant:
-
-```dart
-final routes = [
-  const EvmRoute(),
-  const ClientsRoute(),
-  const EvmGrantsRoute(),
-  const AboutRoute(),
-];
-```
-
-And replace the `destinations` list inside `AdaptiveScaffold`:
-
-```dart
-destinations: const [
-  NavigationDestination(
-    icon: Icon(Icons.account_balance_wallet_outlined),
-    selectedIcon: Icon(Icons.account_balance_wallet),
-    label: 'Wallets',
-  ),
-  NavigationDestination(
-    icon: Icon(Icons.devices_other_outlined),
-    selectedIcon: Icon(Icons.devices_other),
-    label: 'Clients',
-  ),
-  NavigationDestination(
-    icon: Icon(Icons.policy_outlined),
-    selectedIcon: Icon(Icons.policy),
-    label: 'Grants',
-  ),
-  NavigationDestination(
-    icon: Icon(Icons.info_outline),
-    selectedIcon: Icon(Icons.info),
-    label: 'About',
-  ),
-],
-```
-
-- [ ] **Step 3: Regenerate router**
-
-```sh
-cd operator && dart run build_runner build --delete-conflicting-outputs
-```
-
-Expected: `lib/router.gr.dart` updated, `EvmGrantsRoute` now available, no errors.
-
-- [ ] **Step 4: Full project verify**
-
-```sh
-cd operator && flutter analyze
-```
-
-Expected: no issues.
-
-- [ ] **Step 5: Commit**
-
-```sh
-jj describe -m "feat(nav): add Grants dashboard tab"
-jj new
-```

docs/superpowers/specs/2026-03-28-grant-grid-view-design.md

@@ -1,170 +0,0 @@
-# Grant Grid View — Design Spec
-
-**Date:** 2026-03-28
-
-## Overview
-
-Add a "Grants" dashboard tab to the Flutter operator app that displays all EVM grants as a card-based grid. Each card shows a compact summary (type, chain, wallet address, client name) with a revoke action. The tab integrates into the existing `AdaptiveScaffold` navigation alongside Wallets, Clients, and About.
-
-## Scope
-
-- New `walletAccessListProvider` for fetching wallet access entries with their DB row IDs
-- New `EvmGrantsScreen` as a dashboard tab
-- Grant card widget with enriched display (type, chain, wallet, client)
-- Revoke action wired to existing `executeRevokeEvmGrant` mutation
-- Dashboard tab bar and router updated
-- New token-transfer accent color added to `Palette`
-
-**Out of scope:** Fixing grant creation (separate task).
-
----
-
-## Data Layer
-
-### `walletAccessListProvider`
-
-**File:** `operator/lib/providers/sdk_clients/wallet_access_list.dart`
-
-- `@riverpod` class, watches `connectionManagerProvider.future`
-- Returns `List<SdkClientWalletAccess>?` (null when not connected)
-- Each entry: `.id` (wallet_access_id), `.access.walletId`, `.access.sdkClientId`
-- Exposes a `refresh()` method following the same pattern as `EvmGrants.refresh()`
-
-### Enrichment at render time (Approach A)
-
-The `EvmGrantsScreen` watches four providers:
-1. `evmGrantsProvider` — the grant list
-2. `walletAccessListProvider` — to resolve wallet_access_id → (wallet_id, sdk_client_id)
-3. `evmProvider` — to resolve wallet_id → wallet address
-4. `sdkClientsProvider` — to resolve sdk_client_id → client name
-
-All lookups are in-memory Maps built inside the build method; no extra model class needed.
-
-Fallbacks:
-- Wallet address not found → `"Access #N"` where N is the wallet_access_id
-- Client name not found → `"Client #N"` where N is the sdk_client_id
-
----
-
-## Route Structure
-
-```
-/dashboard
-  /evm          ← existing (Wallets tab)
-  /clients      ← existing (Clients tab)
-  /grants       ← NEW (Grants tab)
-  /about        ← existing
-
-/evm-grants/create  ← existing push route (unchanged)
-```
-
-### Changes to `router.dart`
-
-Add inside dashboard children:
-```dart
-AutoRoute(page: EvmGrantsRoute.page, path: 'grants'),
-```
-
-### Changes to `dashboard.dart`
-
-Add to `routes` list:
-```dart
-const EvmGrantsRoute()
-```
-
-Add `NavigationDestination`:
-```dart
-NavigationDestination(
-  icon: Icon(Icons.policy_outlined),
-  selectedIcon: Icon(Icons.policy),
-  label: 'Grants',
-),
-```
-
----
-
-## Screen: `EvmGrantsScreen`
-
-**File:** `operator/lib/screens/dashboard/evm/grants/grants.dart`
-
-```
-Scaffold
-└─ SafeArea
-   └─ RefreshIndicator.adaptive (refreshes evmGrantsProvider + walletAccessListProvider)
-      └─ ListView (BouncingScrollPhysics + AlwaysScrollableScrollPhysics)
-         ├─ PageHeader
-         │    title: 'EVM Grants'
-         │    isBusy: evmGrantsProvider.isLoading
-         │    actions: [CreateGrantButton, RefreshButton]
-         ├─ SizedBox(height: 1.8.h)
-         └─ <content>
-```
-
-### State handling
-
-Matches the pattern from `EvmScreen` and `ClientsScreen`:
-
-| State | Display |
-|---|---|
-| Loading (no data yet) | `_StatePanel` with spinner, "Loading grants" |
-| Error | `_StatePanel` with coral icon, error message, Retry button |
-| No connection | `_StatePanel`, "No active server connection" |
-| Empty list | `_StatePanel`, "No grants yet", with Create Grant shortcut |
-| Data | Column of `_GrantCard` widgets |
-
-### Header actions
-
-**CreateGrantButton:** `FilledButton.icon` with `Icons.add_rounded`, pushes `CreateEvmGrantRoute()` via `context.router.push(...)`.
-
-**RefreshButton:** `OutlinedButton.icon` with `Icons.refresh`, calls `ref.read(evmGrantsProvider.notifier).refresh()`.
-
----
-
-## Grant Card: `_GrantCard`
-
-**Layout:**
-
-```
-Container (rounded 24, Palette.cream bg, Palette.line border)
-└─ IntrinsicHeight > Row
-   ├─ Accent strip (0.8.w wide, full height, rounded left)
-   └─ Padding > Column
-        ├─ Row 1: TypeBadge + ChainChip + Spacer + RevokeButton
-        └─ Row 2: WalletText + "·" + ClientText
-```
-
-**Accent color by grant type:**
-- Ether transfer → `Palette.coral`
-- Token transfer → `Palette.token` (new entry in `Palette` — indigo, e.g. `Color(0xFF5C6BC0)`)
-
-**TypeBadge:** Small pill container with accent color background at 15% opacity, accent-colored text. Label: `'Ether'` or `'Token'`.
-
-**ChainChip:** Small container: `'Chain ${grant.shared.chainId}'`, muted ink color.
-
-**WalletText:** Short hex address (`0xabc...def`) from wallet lookup, `bodySmall`, monospace font family.
-
-**ClientText:** Client name from `sdkClientsProvider` lookup, or fallback string. `bodySmall`, muted ink.
-
-**RevokeButton:**
-- `OutlinedButton` with `Icons.block_rounded` icon, label `'Revoke'`
-- `foregroundColor: Palette.coral`, `side: BorderSide(color: Palette.coral.withValues(alpha: 0.4))`
-- Disabled (replaced with `CircularProgressIndicator`) while `revokeEvmGrantMutation` is pending — note: this is a single global mutation, so all revoke buttons disable while any revoke is in flight
-- On press: calls `executeRevokeEvmGrant(ref, grantId: grant.id)`; shows `SnackBar` on error
-
----
-
-## Adaptive Sizing
-
-All sizing uses `sizer` units (`1.h`, `1.w`, etc.). No hardcoded pixel values.
-
----
-
-## Files to Create / Modify
-
-| File | Action |
-|---|---|
-| `lib/theme/palette.dart` | Modify — add `Palette.token` color |
-| `lib/providers/sdk_clients/wallet_access_list.dart` | Create |
-| `lib/screens/dashboard/evm/grants/grants.dart` | Create |
-| `lib/router.dart` | Modify — add grants route to dashboard children |
-| `lib/screens/dashboard.dart` | Modify — add tab to routes list and NavigationDestinations |

mise.toml

@@ -22,3 +22,5 @@ run = '''
 dart pub global activate protoc_plugin && \
 protoc --dart_out=grpc:useragent/lib/proto --proto_path=protobufs/ $(find protobufs -name '*.proto' | sort)
 '''
+
+[tasks.generate_schema]

server/Cargo.toml

@@ -6,37 +6,34 @@ resolver = "3"
 
 
 [workspace.dependencies]
-alloy = "2.0.4"
+alloy = "2.4.1"
-async-trait = "0.1.89"
+async-trait = "0.1.92"
-base64 = "0.22.1"
+base64 = "0.23.1"
-chrono = { version = "0.4.44", features = ["serde"] }
+chrono = { version = "0.4.45", features = ["serde"] }
-futures = "0.3.32"
+futures = "0.3.34"
 k256 = { version = "0.13.4", features = ["ecdsa", "pkcs8"] }
 kameo = {git = "https://github.com/hdbg/kameo.git", rev = "805b417"}
 kameo_actors = {git = "https://github.com/hdbg/kameo.git", rev = "805b417"}
 hmac = "0.13.0"
-# `derive` only: nothing renders a miette Report yet, so `fancy` would drag the
+miette = { version = "7.6.0", features = ["fancy", "serde"] }
-# terminal-formatting stack (owo-colors, supports-color, textwrap, terminal_size)
+ml-dsa = { version = "0.1.1", features = ["zeroize"] }
-# into the headless daemon. A CLI that wants pretty output enables `fancy` itself.
-miette = "7.6.0"
-ml-dsa = { version = "0.1.0-rc.9", features = ["zeroize"] }
 mutants = "0.0.4"
-prost = "0.14.3"
+prost = "0.14.4"
-prost-types = { version = "0.14.3", features = ["chrono"] }
+prost-types = { version = "0.14.4", features = ["chrono"] }
-rand = "0.10.1"
+rand = "0.10.2"
 rand_core = "0.10.1"
-rcgen = { version = "0.14.7", features = [ "aws_lc_rs",  "pem", "x509-parser", "zeroize" ], default-features = false }
+rcgen = { version = "0.14.9", features = [ "aws_lc_rs",  "pem", "x509-parser", "zeroize" ], default-features = false }
 rstest = "0.26.1"
-rustls = { version = "0.23.40", features = ["aws-lc-rs", "logging", "prefer-post-quantum", "std"], default-features = false }
+rustls = { version = "0.23.43", features = ["aws-lc-rs", "logging", "prefer-post-quantum", "std"], default-features = false }
-rustls-pki-types = "1.14.1"
+rustls-pki-types = "1.15.1"
 sha2 = "0.11"
 smlang = "0.8.0"
-thiserror = "2.0.18"
+thiserror = "2.0.20"
-tokio = { version = "1.52.1", features = ["full"] }
+tokio = { version = "1.53.1", features = ["full"] }
-tokio-stream = { version = "0.1.18", features = ["full"] }
+tokio-stream = { version = "0.1.19", features = ["full"] }
-tonic = { version = "0.14.5", features = [ "deflate", "gzip", "tls-connect-info", "zstd" ] }
+tonic = { version = "0.14.6", features = [ "deflate", "gzip", "tls-connect-info", "zstd" ] }
 tracing = "0.1.44"
-x25519-dalek = { version = "2.0.1", features = ["getrandom"] }
+x25519-dalek = { version = "3.0.0", features = ["getrandom"] }
 
 [workspace.lints.rust]
 missing_unsafe_on_extern = "deny"

server/crates/arbiter-client/Cargo.toml

@@ -20,8 +20,8 @@ tonic.features = ["tls-aws-lc"]
 tokio.workspace = true
 tokio-stream.workspace = true
 thiserror.workspace = true
-http = "1.4.0"
+http = "1.5.0"
-rustls-webpki = { version = "0.103.13", features = ["aws-lc-rs"] }
+rustls-webpki = { version = "0.103.15", features = ["aws-lc-rs"] }
 async-trait.workspace = true
 chrono.workspace = true
 

server/crates/arbiter-client/src/auth.rs

@@ -23,7 +23,6 @@ use arbiter_proto::{
 use chrono::DateTime;
 
 #[derive(Debug, thiserror::Error)]
-#[non_exhaustive]
 pub enum AuthError {
     #[error("Server sent invalid auth challenge")]
     InvalidChallenge,

server/crates/arbiter-client/src/client.rs

@@ -17,7 +17,6 @@ use tokio_stream::wrappers::ReceiverStream;
 use tonic::transport::ClientTlsConfig;
 
 #[derive(Debug, thiserror::Error)]
-#[non_exhaustive]
 pub enum ArbiterClientError {
     #[error("Authentication error")]
     Authentication(#[from] AuthError),

server/crates/arbiter-client/src/storage.rs

@@ -4,7 +4,6 @@ use arbiter_proto::home_path;
 use std::path::{Path, PathBuf};
 
 #[derive(Debug, thiserror::Error)]
-#[non_exhaustive]
 pub enum StorageError {
     #[error("Invalid signing key length in storage: expected {expected} bytes, got {actual} bytes")]
     InvalidKeyLength { expected: usize, actual: usize },

server/crates/arbiter-client/src/transport.rs

@@ -11,7 +11,6 @@ pub fn next_request_id() -> i32 {
 }
 
 #[derive(Debug, thiserror::Error)]
-#[non_exhaustive]
 pub enum ClientSignError {
     #[error("Transport channel closed")]
     ChannelClosed,

server/crates/arbiter-crypto/Cargo.toml

@@ -6,10 +6,10 @@ edition = "2024"
 [dependencies]
 ml-dsa = {workspace = true, optional = true }
 rand = {workspace = true, optional = true}
-memsafe = {version = "0.4.0", optional = true}
+memsafe = {version = "1.0.2", optional = true}
 hmac.workspace = true
 alloy.workspace = true
-x-wing = { version = "0.1.0-rc.0", features = ["zeroize"] }
+x-wing = { version = "0.1.0", features = ["zeroize"] }
 chrono.workspace = true
 thiserror.workspace = true
 

server/crates/arbiter-crypto/src/authn/v1.rs

@@ -1,8 +1,8 @@
 use chrono::{DateTime, Utc};
 use hmac::digest::Digest;
 use ml_dsa::{
-    EncodedVerifyingKey, Error, KeyGen, MlDsa87, Seed, Signature as MlDsaSignature,
+    EncodedVerifyingKey, Error, ExpandedSigningKey, Generate, MlDsa87, Seed,
-    SigningKey as MlDsaSigningKey, VerifyingKey as MlDsaVerifyingKey, signature::Keypair as _,
+    Signature as MlDsaSignature, SigningKey as MlDsaSigningKey, VerifyingKey as MlDsaVerifyingKey,
 };
 use rand::RngExt;
 
@@ -77,7 +77,10 @@ impl crate::hashing::Hashable for PublicKey {
 pub struct Signature(Box<MlDsaSignature<KeyParams>>);
 
 #[derive(Debug)]
-pub struct SigningKey(Box<MlDsaSigningKey<KeyParams>>);
+pub struct SigningKey {
+    key: Box<ExpandedSigningKey<KeyParams>>,
+    seed: Seed,
+}
 
 impl PublicKey {
     pub fn to_bytes(&self) -> Vec<u8> {
@@ -100,24 +103,31 @@ impl Signature {
 
 impl SigningKey {
     pub fn generate() -> Self {
-        Self(Box::new(KeyParams::key_gen(&mut rand::rng())))
+        let seed = MlDsaSigningKey::<KeyParams>::generate_from_rng(&mut rand::rng()).to_seed();
+        Self {
+            key: Box::new(ExpandedSigningKey::from_seed(&seed)),
+            seed,
+        }
     }
 
     pub fn from_seed(seed: [u8; 32]) -> Self {
-        Self(Box::new(KeyParams::from_seed(&Seed::from(seed))))
+        let seed = Seed::from(seed);
+        Self {
+            key: Box::new(ExpandedSigningKey::from_seed(&seed)),
+            seed,
+        }
     }
 
     pub fn to_seed(&self) -> [u8; 32] {
-        self.0.to_seed().into()
+        self.seed.into()
     }
 
     pub fn public_key(&self) -> PublicKey {
-        self.0.verifying_key().into()
+        self.key.verifying_key().into()
     }
 
     pub fn sign_message(&self, message: &[u8], context: &[u8]) -> Result<Signature, Error> {
-        self.0
+        self.key
-            .signing_key()
             .sign_deterministic(message, context)
             .map(Into::into)
     }
@@ -145,12 +155,6 @@ impl From<MlDsaSignature<KeyParams>> for Signature {
     }
 }
 
-impl From<MlDsaSigningKey<KeyParams>> for SigningKey {
-    fn from(value: MlDsaSigningKey<KeyParams>) -> Self {
-        Self(Box::new(value))
-    }
-}
-
 impl TryFrom<Vec<u8>> for PublicKey {
     type Error = ();
 
@@ -188,15 +192,15 @@ impl TryFrom<&'_ [u8]> for Signature {
 
 #[cfg(test)]
 mod tests {
-    use ml_dsa::{KeyGen, MlDsa87, signature::Keypair as _};
+    use ml_dsa::{Generate as _, MlDsa87, SigningKey as RealSigningKey, signature::Keypair as _};
 
     use crate::authn::AuthChallenge;
 
-    use super::{CLIENT_CONTEXT, PublicKey, Signature, SigningKey, OPERATOR_CONTEXT};
+    use super::{CLIENT_CONTEXT, OPERATOR_CONTEXT, PublicKey, Signature, SigningKey};
 
     #[test]
     fn public_key_round_trip_decodes() {
-        let key = MlDsa87::key_gen(&mut rand::rng());
+        let key = RealSigningKey::<MlDsa87>::generate();
         let encoded = PublicKey::from(key.verifying_key()).to_bytes();
 
         let decoded = PublicKey::try_from(encoded.as_slice()).expect("public key should decode");

server/crates/arbiter-macros/Cargo.toml

@@ -10,7 +10,7 @@ doctest = false
 [dependencies]
 proc-macro2 = "1.0"
 quote = "1.0"
-syn = { version = "2.0", features = ["derive", "fold", "full", "visit-mut"] }
+syn = { version = "3.0", features = ["derive", "fold", "full", "visit-mut"] }
 
 [dev-dependencies]
 arbiter-crypto = { path = "../arbiter-crypto" }

server/crates/arbiter-proto/Cargo.toml

@@ -9,7 +9,7 @@ license = "Apache-2.0"
 tonic.workspace = true
 tokio.workspace = true
 futures.workspace = true
-tonic-prost = "0.14.5"
+tonic-prost = "0.14.6"
 prost.workspace = true
 kameo.workspace = true
 url = "2.5.8"
@@ -22,7 +22,7 @@ async-trait.workspace = true
 tokio-stream.workspace = true
 
 [build-dependencies]
-tonic-prost-build = "0.14.5"
+tonic-prost-build = "0.14.6"
 
 [dev-dependencies]
 rstest.workspace = true

server/crates/arbiter-proto/src/url.rs

@@ -30,7 +30,6 @@ impl Display for ArbiterUrl {
 }
 
 #[derive(Debug, thiserror::Error, miette::Diagnostic)]
-#[non_exhaustive]
 pub enum Error {
     #[error("Invalid URL scheme, expected '{ARBITER_URL_SCHEME}://'")]
     #[diagnostic(

server/crates/arbiter-server/Cargo.toml

@@ -9,8 +9,14 @@ license = "Apache-2.0"
 workspace = true
 
 [dependencies]
-diesel = { version = "2.3.9", features = ["chrono", "returning_clauses_for_sqlite_3_35", "serde_json", "time", "uuid"] }
+diesel = { version = "2.3.12", features = [
-diesel-async = { version = "0.9.0", features = [
+    "chrono",
+    "returning_clauses_for_sqlite_3_35",
+    "serde_json",
+    "time",
+    "uuid",
+] }
+diesel-async = { version = "0.9.2", features = [
     "bb8",
     "migrations",
     "sqlite",
@@ -35,17 +41,17 @@ rand_core.workspace = true
 rcgen.workspace = true
 chrono.workspace = true
 kameo.workspace = true
-chacha20poly1305 = { version = "0.10.1", features = ["std"] }
+chacha20poly1305 = { version = "0.11.0" }
-argon2 = { version = "0.5.3", features = ["zeroize"] }
+argon2 = { version = "0.6.0", features = ["zeroize"] }
 restructed = "0.2.2"
 strum = { version = "0.28.0", features = ["derive"] }
-pem = "3.0.6"
+pem = "4.0.0"
 sha2.workspace = true
 hmac.workspace = true
 alloy.workspace = true
 prost-types.workspace = true
 arbiter-tokens-registry.path = "../arbiter-tokens-registry"
-anyhow = "1.0.102"
+anyhow = "1.0.104"
 mutants.workspace = true
 subtle = "2.6.1"
 x25519-dalek.workspace = true

server/crates/arbiter-server/migrations/2026-02-14-171124-0000_init/up.sql

@@ -43,13 +43,24 @@ create table if not exists arbiter_settings (
 insert into arbiter_settings (id) values (1) on conflict do nothing;
 -- ensure singleton row exists
 
-create table if not exists operator_client (
+create table if not exists operator_identity (
     id integer not null primary key,
     public_key blob not null,
     created_at integer not null default(unixepoch ('now')),
     updated_at integer not null default(unixepoch ('now'))
 ) STRICT;
-create unique index if not exists uniq_operator_client_public_key on operator_client (public_key);
+create unique index if not exists uniq_operator_identity_public_key on operator_identity (public_key);
+
+create table if not exists operator (
+    id integer primary key references operator_identity(id) on delete restrict, -- same id as operator_identity
+
+    share blob not null,
+    share_nonce blob not null,
+
+    created_at integer not null default(unixepoch ('now')),
+    updated_at integer not null default(unixepoch ('now'))
+
+) STRICT;
 
 create table if not exists client_metadata (
     id integer not null primary key,

server/crates/arbiter-server/src/actors/bootstrap.rs

@@ -68,7 +68,7 @@ impl Bootstrapper {
         let row_count: i64 = {
             let mut conn = db.get().await?;
 
-            schema::operator_client::table
+            schema::operator::table
                 .count()
                 .get_result(&mut conn)
                 .await?

server/crates/arbiter-server/src/actors/evm/mod.rs

@@ -3,7 +3,7 @@ use crate::{
     crypto::integrity::{self, Integrable},
     db::{
         DatabaseError, DatabasePool,
-        models::{self},
+        models::{self, EvmWalletId},
         schema,
     },
     evm::{
@@ -162,7 +162,7 @@ impl EvmActor {
     }
 
     #[message]
-    pub async fn list_wallets(&self) -> Result<Vec<(i32, Address)>, Error> {
+    pub async fn list_wallets(&self) -> Result<Vec<(EvmWalletId, Address)>, Error> {
         let mut conn = self.db.get().await.map_err(DatabaseError::from)?;
         let rows: Vec<models::EvmWallet> = schema::evm_wallet::table
             .select(models::EvmWallet::as_select())
@@ -295,18 +295,18 @@ impl EvmActor {
                 address: wallet_address,
                 aead_encrypted_id: wallet.aead_encrypted_id,
             },
-            wallet.id,
+            wallet.id.to_raw(),
         )
         .await
         .map_err(|e| {
-            error!(?e, wallet_id = wallet.id, "EVM wallet integrity check failed");
+            error!(?e, ?wallet.id, "EVM wallet integrity check failed");
             SignTransactionError::Internal
         })?;
         drop(conn);
 
         if attestation != integrity::AttestationStatus::Attested {
             error!(
-                wallet_id = wallet.id,
+                ?wallet.id,
                 "EVM wallet integrity unavailable; refusing to sign"
             );
             return Err(SignTransactionError::Internal);

server/crates/arbiter-server/src/actors/vault/mod.rs

@@ -6,7 +6,7 @@ use crate::{
     },
     db::{
         self,
-        models::{self, RootKeyHistory},
+        models::{self, RootKeyHistory, RootKeyHistoryId},
         schema::{self},
     },
 };
@@ -25,7 +25,6 @@ use strum::{EnumDiscriminants, IntoDiscriminant};
 use tracing::{error, info, warn};
 
 pub mod events {
-
     #[derive(Clone, Copy)]
     pub struct Bootstrapped;
 
@@ -64,12 +63,12 @@ pub enum Error {
     #[error("Broken database")]
     BrokenDatabase,
 
-    #[error("Integrity key version mismatch: envelope uses key {envelope}, current key is {current}")]
+    #[error("Integrity key version mismatch: envelope uses key {envelope:?}, current key is {current:?}")]
-    KeyVersionMismatch { envelope: i32, current: i32 },
+    KeyVersionMismatch { envelope: RootKeyHistoryId, current: RootKeyHistoryId },
 }
 
 struct Unsealed {
-    root_key_history_id: i32,
+    root_key_history_id: RootKeyHistoryId,
     root_key: KeyCell,
 }
 
@@ -78,8 +77,9 @@ struct Unsealed {
 enum State {
     #[default]
     Unbootstrapped,
+
     Sealed {
-        root_key_history_id: i32,
+        root_key_history_id: RootKeyHistoryId,
     },
     Unsealed(Unsealed),
 }
@@ -123,7 +123,10 @@ impl Vault {
 
     // Exclusive transaction to avoid race condtions if multiple vaults write
     // additional layer of protection against nonce-reuse
-    async fn get_new_nonce(pool: &db::DatabasePool, root_key_id: i32) -> Result<Nonce, Error> {
+    async fn get_new_nonce(
+        pool: &db::DatabasePool,
+        root_key_id: RootKeyHistoryId,
+    ) -> Result<Nonce, Error> {
         let mut conn = pool.get().await?;
 
         let nonce = conn
@@ -136,7 +139,7 @@ impl Vault {
 
                 let mut nonce = Nonce::try_from(current_nonce.as_slice()).map_err(|()| {
                     error!(
-                        "Broken database: invalid nonce for root key history id={}",
+                        "Broken database: invalid nonce for root key history id={:#?}",
                         root_key_id
                     );
                     Error::BrokenDatabase
@@ -192,7 +195,7 @@ impl Vault {
         let data_encryption_nonce_bytes = data_encryption_nonce.to_vec();
         let root_key_history_id = conn
             .transaction(async |conn| {
-                let root_key_history_id: i32 = insert_into(schema::root_key_history::table)
+                let root_key_history_id = insert_into(schema::root_key_history::table)
                     .values(&models::NewRootKeyHistory {
                         ciphertext: root_key_ciphertext.clone(),
                         tag: v1::ROOT_KEY_TAG.to_vec(),
@@ -210,7 +213,9 @@ impl Vault {
                     .execute(&mut *conn)
                     .await?;
 
-                Result::<_, diesel::result::Error>::Ok(root_key_history_id)
+                Result::<_, diesel::result::Error>::Ok(RootKeyHistoryId::from_raw(
+                    root_key_history_id,
+                ))
             })
             .await?;
 
@@ -370,7 +375,10 @@ impl Vault {
     }
 
     #[message]
-    pub fn sign_integrity(&mut self, mac_input: Vec<u8>) -> Result<(i32, Vec<u8>), Error> {
+    pub fn sign_integrity(
+        &mut self,
+        mac_input: Vec<u8>,
+    ) -> Result<(RootKeyHistoryId, Vec<u8>), Error> {
         let Unsealed {
             root_key,
             root_key_history_id,
@@ -380,7 +388,7 @@ impl Vault {
             HmacSha256::new_from_slice(k)
                 .unwrap_or_else(|_| unreachable!("HMAC accepts keys of any size"))
         });
-        hmac.update(&root_key_history_id.to_be_bytes());
+        hmac.update(&root_key_history_id.to_raw().to_be_bytes());
         hmac.update(&mac_input);
 
         let mac = hmac.finalize().into_bytes().to_vec();
@@ -392,7 +400,7 @@ impl Vault {
         &mut self,
         mac_input: Vec<u8>,
         expected_mac: Vec<u8>,
-        key_version: i32,
+        key_version: RootKeyHistoryId,
     ) -> Result<bool, Error> {
         let Unsealed {
             root_key,
@@ -410,7 +418,7 @@ impl Vault {
             HmacSha256::new_from_slice(k)
                 .unwrap_or_else(|_| unreachable!("HMAC accepts keys of any size"))
         });
-        hmac.update(&key_version.to_be_bytes());
+        hmac.update(&key_version.to_raw().to_be_bytes());
         hmac.update(&mac_input);
 
         Ok(hmac.verify_slice(&expected_mac).is_ok())
@@ -434,6 +442,7 @@ impl Vault {
 #[cfg(test)]
 mod tests {
     use crate::actors::GlobalActors;
+    use crate::db::models::RootKeyHistory;
     use arbiter_crypto::safecell::SafeCellHandle as _;
 
     use super::*;

server/crates/arbiter-server/src/crypto/encryption/v1.rs

@@ -1,4 +1,3 @@
-use argon2::password_hash::Salt as ArgonSalt;
 use rand::{
     Rng as _, SeedableRng,
     rngs::{StdRng, SysRng},
@@ -42,7 +41,7 @@ impl<'a> TryFrom<&'a [u8]> for Nonce {
     }
 }
 
-pub type Salt = [u8; ArgonSalt::RECOMMENDED_LENGTH];
+pub type Salt = [u8; argon2::RECOMMENDED_SALT_LEN];
 
 pub fn generate_salt() -> Salt {
     let mut salt = Salt::default();

server/crates/arbiter-server/src/crypto/integrity/v1.rs

@@ -13,7 +13,6 @@ use diesel_async::{AsyncConnection, RunQueryDsl};
 use hmac::Hmac;
 use kameo::{actor::ActorRef, error::SendError};
 use sha2::{Digest as _, Sha256};
-use tracing::error;
 
 #[derive(Debug, thiserror::Error)]
 pub enum Error {
@@ -122,10 +121,7 @@ pub async fn sign_entity<E: Integrable>(
             .await
             .map_err(|err| match err {
                 SendError::HandlerError(inner) => Error::Vault(inner),
-                other => {
+                _ => Error::VaultSend,
-                    error!(?other, "Vault unreachable while signing integrity envelope");
-                    Error::VaultSend
-                }
             })?;
 
     insert_into(integrity_envelope::table)
@@ -199,18 +195,12 @@ pub async fn verify_entity<E: Integrable>(
         Err(SendError::HandlerError(
             vault::Error::Sealed | vault::Error::KeyVersionMismatch { .. },
         )) => Ok(AttestationStatus::Unavailable),
-        Err(other) => {
+        Err(_) => Err(Error::VaultSend),
-            error!(?other, "Vault unreachable while verifying integrity envelope");
-            Err(Error::VaultSend)
-        }
     }
 }
 
 pub async fn is_signing_available(vault: &ActorRef<Vault>) -> Result<bool, Error> {
-    let state = vault.ask(GetState).await.map_err(|err| {
+    let state = vault.ask(GetState).await.map_err(|_| Error::VaultSend)?;
-        error!(?err, "Vault unreachable while querying signing availability");
-        Error::VaultSend
-    })?;
     Ok(matches!(state, vault::VaultState::Unsealed))
 }
 

server/crates/arbiter-server/src/crypto/mod.rs

@@ -3,8 +3,8 @@ use encryption::v1::{Nonce, Salt};
 
 use argon2::{Algorithm, Argon2};
 use chacha20poly1305::{
-    AeadInPlace, Key, KeyInit as _, XChaCha20Poly1305, XNonce,
+    AeadInOut, Key, KeyInit as _, XChaCha20Poly1305, XNonce,
-    aead::{AeadMut, Error, Payload},
+    aead::{Aead, Error, Payload},
 };
 use rand::{
     Rng as _, SeedableRng as _,
@@ -54,9 +54,9 @@ impl KeyCell {
     ) -> Result<(), Error> {
         let key_reader = self.0.read();
         let cipher = XChaCha20Poly1305::new(&key_reader);
-        let nonce = XNonce::from_slice(nonce.0.as_ref());
+        let nonce = XNonce::from(nonce.0);
         let buffer = buffer.as_mut();
-        cipher.encrypt_in_place(nonce, associated_data, buffer)
+        cipher.encrypt_in_place(&nonce, associated_data, buffer)
     }
     pub fn decrypt_in_place(
         &mut self,
@@ -66,10 +66,10 @@ impl KeyCell {
     ) -> Result<(), Error> {
         let key_reader = self.0.read();
         let cipher = XChaCha20Poly1305::new(&key_reader);
-        let nonce = XNonce::from_slice(nonce.0.as_ref());
+        let nonce = XNonce::from(nonce.0);
         let mut buffer = buffer.write();
         let buffer: &mut Vec<u8> = buffer.as_mut();
-        cipher.decrypt_in_place(nonce, associated_data, buffer)
+        cipher.decrypt_in_place(&nonce, associated_data, buffer)
     }
 
     pub fn encrypt(
@@ -79,11 +79,11 @@ impl KeyCell {
         plaintext: impl AsRef<[u8]>,
     ) -> Result<Vec<u8>, Error> {
         let key_reader = self.0.read();
-        let mut cipher = XChaCha20Poly1305::new(&key_reader);
+        let cipher = XChaCha20Poly1305::new(&key_reader);
-        let nonce = XNonce::from_slice(nonce.0.as_ref());
+        let nonce = XNonce::from(nonce.0);
 
         let ciphertext = cipher.encrypt(
-            nonce,
+            &nonce,
             Payload {
                 msg: plaintext.as_ref(),
                 aad: associated_data,

server/crates/arbiter-server/src/db/models.rs

@@ -79,10 +79,41 @@ pub mod types {
         }
     }
 
-    #[derive(Debug, FromSqlRow, AsExpression, Clone)]
+    macro_rules! declare_id {
-    #[diesel(sql_type = Integer)]
+        ($name:ident) => {
-    #[repr(transparent)] // hint compiler to optimize the wrapper struct away
+            #[derive(Debug, FromSqlRow, AsExpression, Clone, Hash, Copy, PartialEq, Eq)]
-    pub struct ChainId(pub i32);
+            #[diesel(sql_type = Integer)]
+            #[repr(transparent)] // hint compiler to optimize the wrapper struct away
+            pub struct $name(i32);
+
+            impl $name {
+                pub const fn to_raw(self) -> i32 {
+                    self.0
+                }
+                pub const fn from_raw(raw: i32) -> Self {
+                    Self(raw)
+                }
+            }
+
+            impl FromSql<Integer, Sqlite> for $name {
+                fn from_sql(
+                    bytes: <Sqlite as diesel::backend::Backend>::RawValue<'_>,
+                ) -> diesel::deserialize::Result<Self> {
+                    FromSql::<Integer, Sqlite>::from_sql(bytes).map(Self)
+                }
+            }
+            impl ToSql<Integer, Sqlite> for $name {
+                fn to_sql<'b>(
+                    &'b self,
+                    out: &mut diesel::serialize::Output<'b, '_, Sqlite>,
+                ) -> diesel::serialize::Result {
+                    ToSql::<Integer, Sqlite>::to_sql(&self.0, out)
+                }
+            }
+        };
+    }
+
+    declare_id!(ChainId);
 
     #[expect(
         clippy::cast_sign_loss,
@@ -103,21 +134,13 @@ pub mod types {
         }
     };
 
-    impl FromSql<Integer, Sqlite> for ChainId {
+    declare_id!(OperatorId);
-        fn from_sql(
+    declare_id!(OperatorIdentityId);
-            bytes: <Sqlite as diesel::backend::Backend>::RawValue<'_>,
+    declare_id!(AeadEncryptedId);
-        ) -> diesel::deserialize::Result<Self> {
+    declare_id!(RootKeyHistoryId);
-            FromSql::<Integer, Sqlite>::from_sql(bytes).map(Self)
+    declare_id!(TlsHistoryId);
-        }
+    declare_id!(EvmWalletId);
-    }
+    declare_id!(ClientId);
-    impl ToSql<Integer, Sqlite> for ChainId {
-        fn to_sql<'b>(
-            &'b self,
-            out: &mut diesel::serialize::Output<'b, '_, Sqlite>,
-        ) -> diesel::serialize::Result {
-            ToSql::<Integer, Sqlite>::to_sql(&self.0, out)
-        }
-    }
 }
 pub use types::*;
 
@@ -130,12 +153,12 @@ pub use types::*;
 )]
 #[diesel(table_name = aead_encrypted, check_for_backend(Sqlite))]
 pub struct AeadEncrypted {
-    pub id: i32,
+    pub id: AeadEncryptedId,
     pub ciphertext: Vec<u8>,
     pub tag: Vec<u8>,
     pub current_nonce: Vec<u8>,
     pub schema_version: i32,
-    pub associated_root_key_id: i32, // references root_key_history.id
+    pub associated_root_key_id: RootKeyHistoryId,
     pub created_at: SqliteTimestamp,
 }
 
@@ -148,7 +171,7 @@ pub struct AeadEncrypted {
     attributes_with = "deriveless"
 )]
 pub struct RootKeyHistory {
-    pub id: i32,
+    pub id: RootKeyHistoryId,
     pub ciphertext: Vec<u8>,
     pub tag: Vec<u8>,
     pub root_key_encryption_nonce: Vec<u8>,
@@ -166,7 +189,7 @@ pub struct RootKeyHistory {
     attributes_with = "deriveless"
 )]
 pub struct TlsHistory {
-    pub id: i32,
+    pub id: TlsHistoryId,
     pub cert: String,
     pub cert_key: String, // PEM Encoded private key
     pub ca_cert: String,  // PEM Encoded certificate for cert signing
@@ -191,7 +214,7 @@ pub struct ArbiterSettings {
     attributes_with = "deriveless"
 )]
 pub struct EvmWallet {
-    pub id: i32,
+    pub id: EvmWalletId,
     pub address: Vec<u8>,
     pub aead_encrypted_id: i32,
     pub created_at: SqliteTimestamp,
@@ -213,7 +236,7 @@ pub struct EvmWallet {
 )]
 pub struct EvmWalletAccess {
     pub id: i32,
-    pub wallet_id: i32,
+    pub wallet_id: EvmWalletId,
     pub client_id: i32,
     pub created_at: SqliteTimestamp,
 }
@@ -240,7 +263,7 @@ pub struct ProgramClientMetadataHistory {
 #[derive(Models, Queryable, Debug, Insertable, Selectable)]
 #[diesel(table_name = schema::program_client, check_for_backend(Sqlite))]
 pub struct ProgramClient {
-    pub id: i32,
+    pub id: ClientId,
     pub public_key: Vec<u8>,
     pub metadata_id: i32,
     pub created_at: SqliteTimestamp,
@@ -250,12 +273,22 @@ pub struct ProgramClient {
 #[derive(Queryable, Debug)]
 #[diesel(table_name = schema::operator_client, check_for_backend(Sqlite))]
 pub struct OperatorClient {
-    pub id: i32,
+    pub id: OperatorIdentityId,
     pub public_key: Vec<u8>,
     pub created_at: SqliteTimestamp,
     pub updated_at: SqliteTimestamp,
 }
 
+#[derive(Queryable, Debug)]
+#[diesel(table_name = schema::operator, check_for_backend(Sqlite))]
+pub struct Operator {
+    pub id: OperatorId,
+    pub share: Vec<u8>,
+    pub share_nonce: Vec<u8>,
+    pub created_at: SqliteTimestamp,
+    pub updated_at: SqliteTimestamp,
+}
+
 #[derive(Models, Queryable, Debug, Insertable, Selectable)]
 #[diesel(table_name = evm_ether_transfer_limit, check_for_backend(Sqlite))]
 #[view(
@@ -399,7 +432,7 @@ pub struct IntegrityEnvelope {
     pub entity_kind: String,
     pub entity_id: Vec<u8>,
     pub payload_version: i32,
-    pub key_version: i32,
+    pub key_version: RootKeyHistoryId,
     pub mac: Vec<u8>,
     pub signed_at: SqliteTimestamp,
     pub created_at: SqliteTimestamp,

server/crates/arbiter-server/src/db/schema.rs

@@ -152,6 +152,25 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    operator (id) {
+        id -> Nullable<Integer>,
+        share -> Binary,
+        share_nonce -> Binary,
+        created_at -> Integer,
+        updated_at -> Integer,
+    }
+}
+
+diesel::table! {
+    operator_identity (id) {
+        id -> Integer,
+        public_key -> Binary,
+        created_at -> Integer,
+        updated_at -> Integer,
+    }
+}
+
 diesel::table! {
     program_client (id) {
         id -> Integer,
@@ -185,15 +204,6 @@ diesel::table! {
     }
 }
 
-diesel::table! {
-    operator_client (id) {
-        id -> Integer,
-        public_key -> Binary,
-        created_at -> Integer,
-        updated_at -> Integer,
-    }
-}
-
 diesel::joinable!(aead_encrypted -> root_key_history (associated_root_key_id));
 diesel::joinable!(arbiter_settings -> root_key_history (root_key_id));
 diesel::joinable!(arbiter_settings -> tls_history (tls_id));
@@ -212,6 +222,7 @@ diesel::joinable!(evm_transaction_log -> evm_wallet_access (wallet_access_id));
 diesel::joinable!(evm_wallet -> aead_encrypted (aead_encrypted_id));
 diesel::joinable!(evm_wallet_access -> evm_wallet (wallet_id));
 diesel::joinable!(evm_wallet_access -> program_client (client_id));
+diesel::joinable!(operator -> operator_identity (id));
 diesel::joinable!(program_client -> client_metadata (metadata_id));
 
 diesel::allow_tables_to_appear_in_same_query!(
@@ -230,8 +241,9 @@ diesel::allow_tables_to_appear_in_same_query!(
     evm_wallet,
     evm_wallet_access,
     integrity_envelope,
+    operator,
+    operator_identity,
     program_client,
     root_key_history,
     tls_history,
-    operator_client,
 );

server/crates/arbiter-server/src/evm/mod.rs

@@ -514,7 +514,8 @@ mod tests {
     use crate::db::{
         self, DatabaseConnection,
         models::{
-            EvmBasicGrant, EvmWalletAccess, NewEvmBasicGrant, NewEvmTransactionLog, SqliteTimestamp,
+            EvmBasicGrant, EvmWalletAccess, EvmWalletId, NewEvmBasicGrant, NewEvmTransactionLog,
+            SqliteTimestamp,
         },
         schema::{evm_basic_grant, evm_transaction_log},
     };
@@ -534,7 +535,7 @@ mod tests {
         EvalContext {
             target: EvmWalletAccess {
                 id: WALLET_ACCESS_ID,
-                wallet_id: 10,
+                wallet_id: EvmWalletId::from_raw(5),
                 client_id: 20,
                 created_at: SqliteTimestamp(Utc::now()),
             },
@@ -824,7 +825,7 @@ mod tests {
 
         let wallet_access = EvmWalletAccess {
             id: WALLET_ACCESS_ID,
-            wallet_id: 10,
+            wallet_id: EvmWalletId::from_raw(10),
             client_id: 20,
             created_at: SqliteTimestamp(Utc::now()),
         };

server/crates/arbiter-server/src/evm/policies/ether_transfer/tests.rs

@@ -3,7 +3,8 @@ use crate::{
     db::{
         self, DatabaseConnection,
         models::{
-            EvmBasicGrant, EvmWalletAccess, NewEvmBasicGrant, NewEvmTransactionLog, SqliteTimestamp,
+            EvmBasicGrant, EvmWalletAccess, EvmWalletId, NewEvmBasicGrant, NewEvmTransactionLog,
+            SqliteTimestamp,
         },
         schema::{evm_basic_grant, evm_transaction_log},
     },
@@ -31,7 +32,7 @@ fn ctx(to: Address, value: U256) -> EvalContext {
     EvalContext {
         target: EvmWalletAccess {
             id: WALLET_ACCESS_ID,
-            wallet_id: 10,
+            wallet_id: EvmWalletId::from_raw(10),
             client_id: 20,
             created_at: SqliteTimestamp(Utc::now()),
         },

server/crates/arbiter-server/src/evm/policies/token_transfers/tests.rs

@@ -2,7 +2,7 @@ use super::{Settings, TokenTransfer};
 use crate::{
     db::{
         self, DatabaseConnection,
-        models::{EvmBasicGrant, EvmWalletAccess, NewEvmBasicGrant, SqliteTimestamp},
+        models::{EvmBasicGrant, EvmWalletAccess, EvmWalletId, NewEvmBasicGrant, SqliteTimestamp},
         schema::evm_basic_grant,
     },
     evm::{
@@ -45,7 +45,7 @@ fn ctx(to: Address, calldata: Bytes) -> EvalContext {
     EvalContext {
         target: EvmWalletAccess {
             id: WALLET_ACCESS_ID,
-            wallet_id: 10,
+            wallet_id: EvmWalletId::from_raw(10),
             client_id: 20,
             created_at: SqliteTimestamp(Utc::now()),
         },

server/crates/arbiter-server/src/grpc/operator/evm.rs

@@ -90,7 +90,7 @@ async fn handle_wallet_list(
                 .into_iter()
                 .map(|(id, address)| WalletEntry {
                     address: address.to_vec(),
-                    id,
+                    id: id.to_raw(),
                 })
                 .collect(),
         }),

server/crates/arbiter-server/src/grpc/operator/inbound.rs

@@ -1,11 +1,10 @@
 use crate::{
-    db::models::{CoreEvmWalletAccess, NewEvmWalletAccess},
+    db::models::{CoreEvmWalletAccess, EvmWalletId, NewEvmWalletAccess},
     evm::policies::{
         SharedGrantSettings, SpecificGrant, TransactionRateLimit, VolumeRateLimit, ether_transfer,
         token_transfers,
     },
-    grpc::Convert,
+    grpc::{Convert, TryConvert},
-    grpc::TryConvert,
 };
 use arbiter_proto::{
     proto::evm::{
@@ -151,7 +150,7 @@ impl Convert for WalletAccess {
 
     fn convert(self) -> Self::Output {
         NewEvmWalletAccess {
-            wallet_id: self.wallet_id,
+            wallet_id: EvmWalletId::from_raw(self.wallet_id),
             client_id: self.sdk_client_id,
         }
     }
@@ -166,7 +165,7 @@ impl TryConvert for SdkClientWalletAccess {
             return Err(Status::invalid_argument("Missing wallet access entry"));
         };
         Ok(CoreEvmWalletAccess {
-            wallet_id: access.wallet_id,
+            wallet_id: EvmWalletId::from_raw(access.wallet_id),
             client_id: access.sdk_client_id,
             id: self.id,
         })

server/crates/arbiter-server/src/grpc/operator/outbound.rs

@@ -103,7 +103,7 @@ impl Convert for EvmWalletAccess {
         Self::Output {
             id: self.id,
             access: Some(WalletAccess {
-                wallet_id: self.wallet_id,
+                wallet_id: self.wallet_id.to_raw(),
                 sdk_client_id: self.client_id,
             }),
         }

server/crates/arbiter-server/src/grpc/operator/sdk_client.rs

@@ -2,7 +2,7 @@ use crate::{
     db::models::NewEvmWalletAccess,
     grpc::Convert,
     peers::operator::{
-        OutOfBand, OperatorSession,
+        OperatorSession, OutOfBand,
         session::handlers::{
             HandleGrantEvmWalletAccess, HandleListWalletAccess, HandleNewClientApprove,
             HandleRevokeEvmWalletAccess, HandleSdkClientList,
@@ -11,8 +11,8 @@ use crate::{
 };
 use arbiter_crypto::authn;
 use arbiter_proto::proto::{
-    shared::ClientInfo as ProtoClientMetadata,
     operator::{
+        operator_response::Payload as OperatorResponsePayload,
         sdk_client::{
             self as proto_sdk_client, ConnectionCancel as ProtoSdkClientConnectionCancel,
             ConnectionRequest as ProtoSdkClientConnectionRequest,
@@ -24,8 +24,8 @@ use arbiter_proto::proto::{
             request::Payload as SdkClientRequestPayload,
             response::Payload as SdkClientResponsePayload,
         },
-        operator_response::Payload as OperatorResponsePayload,
     },
+    shared::ClientInfo as ProtoClientMetadata,
 };
 
 use kameo::actor::ActorRef;
@@ -115,7 +115,7 @@ async fn handle_list(
             clients: clients
                 .into_iter()
                 .map(|(client, metadata)| ProtoSdkClientEntry {
-                    id: client.id,
+                    id: client.id.to_raw(),
                     pubkey: client.public_key.clone(),
                     info: Some(ProtoClientMetadata {
                         name: metadata.name,

server/crates/arbiter-server/src/peers/operator/auth/mod.rs

@@ -26,22 +26,21 @@ pub enum Error {
     UnregisteredPublicKey,
     InvalidChallengeSolution,
     InvalidBootstrapToken,
-    /// Reaches the operator verbatim via `Status::internal`, so the payload is
+    Internal { details: String },
-    /// `&'static str`: the type makes it impossible to interpolate an inner
-    /// error. Log the cause, send the constant.
-    Internal { details: &'static str },
     Transport,
 }
 
 impl Error {
-    const fn internal(details: &'static str) -> Self {
+    fn internal(details: impl Into<String>) -> Self {
-        Self::Internal { details }
+        Self::Internal {
+            details: details.into(),
+        }
     }
 }
 
 impl From<diesel::result::Error> for Error {
     fn from(e: diesel::result::Error) -> Self {
-        error!(error = %crate::utils::error_chain(&e), "Database error");
+        error!(?e, "Database error");
         Self::internal("Database error")
     }
 }

server/crates/arbiter-server/src/peers/operator/auth/state.rs

@@ -4,7 +4,7 @@ use super::{
 };
 use crate::{
     actors::bootstrap::ConsumeToken,
-    db::{DatabasePool, schema::operator_client},
+    db::{DatabasePool, schema::operator_identity},
     peers::operator::auth::Outbound,
 };
 use arbiter_crypto::authn::{self, AuthChallenge, OPERATOR_CONTEXT};
@@ -43,9 +43,9 @@ async fn get_client_id(db: &DatabasePool, pubkey: &authn::PublicKey) -> Result<O
         Error::internal("Database unavailable")
     })?;
 
-    operator_client::table
+    operator_identity::table
-        .filter(operator_client::public_key.eq(pubkey.to_bytes()))
+        .filter(operator_identity::public_key.eq(pubkey.to_bytes()))
-        .select(operator_client::id)
+        .select(operator_identity::id)
         .first::<i32>(&mut conn)
         .await
         .optional()
@@ -62,9 +62,9 @@ async fn register_key(db: &DatabasePool, pubkey: &authn::PublicKey) -> Result<i3
         Error::internal("Database unavailable")
     })?;
 
-    let id: i32 = diesel::insert_into(operator_client::table)
+    let id: i32 = diesel::insert_into(operator_identity::table)
-        .values((operator_client::public_key.eq(pubkey_bytes),))
+        .values((operator_identity::public_key.eq(pubkey_bytes),))
-        .returning(operator_client::id)
+        .returning(operator_identity::id)
         .get_result(&mut conn)
         .await
         .map_err(|e| {

server/crates/arbiter-server/src/peers/operator/session/handlers.rs

@@ -1,13 +1,17 @@
 use super::{Error, OperatorSession};
 use crate::{
-    actors::evm::{
+    actors::{
-        ClientSignTransaction, Generate, ListWallets, OperatorCreateGrant, OperatorListGrants,
+        evm::{
-        SignTransactionError as EvmSignError,
+            ClientSignTransaction, Generate, ListWallets, OperatorCreateGrant, OperatorListGrants,
+            SignTransactionError as EvmSignError,
+        },
+        flow_coordinator::{IsClientConnected, client_connect_approval::ClientApprovalAnswer},
+        vault::VaultState,
     },
-    actors::flow_coordinator::{IsClientConnected, client_connect_approval::ClientApprovalAnswer},
-    actors::vault::VaultState,
     db::{
-        models::{EvmWalletAccess, NewEvmWalletAccess, ProgramClient, ProgramClientMetadata},
+        models::{
+            EvmWalletAccess, EvmWalletId, NewEvmWalletAccess, ProgramClient, ProgramClientMetadata,
+        },
         schema::program_client,
     },
     evm::policies::{Grant, SpecificGrant},
@@ -76,7 +80,9 @@ impl OperatorSession {
     }
 
     #[message]
-    pub(crate) async fn handle_evm_wallet_list(&mut self) -> Result<Vec<(i32, Address)>, Error> {
+    pub(crate) async fn handle_evm_wallet_list(
+        &mut self,
+    ) -> Result<Vec<(EvmWalletId, Address)>, Error> {
         match self.props.actors.evm.ask(ListWallets {}).await {
             Ok(wallets) => Ok(wallets),
             Err(err) => {
@@ -328,7 +334,7 @@ impl OperatorSession {
 
 #[cfg(test)]
 mod tests {
-    use crate::db::{self, models::NewEvmWalletAccess, schema::evm_wallet_access};
+    use crate::db::{self, models::{EvmWalletId, NewEvmWalletAccess}, schema::evm_wallet_access};
     use diesel::{ExpressionMethods as _, QueryDsl as _, SelectableHelper};
     use diesel_async::{AsyncConnection, RunQueryDsl};
 
@@ -348,7 +354,7 @@ mod tests {
         // entry B: id will be 2, wallet_id=1, client_id=20
         let entry_a = diesel::insert_into(evm_wallet_access::table)
             .values(NewEvmWalletAccess {
-                wallet_id: 1,
+                wallet_id: EvmWalletId::from_raw(1),
                 client_id: 10,
             })
             .returning(EvmWalletAccess::as_select())
@@ -358,7 +364,7 @@ mod tests {
 
         let entry_b = diesel::insert_into(evm_wallet_access::table)
             .values(NewEvmWalletAccess {
-                wallet_id: 1,
+                wallet_id: EvmWalletId::from_raw(1),
                 client_id: 20,
             })
             .returning(EvmWalletAccess::as_select())
@@ -411,7 +417,7 @@ mod tests {
         for i in 1_i32..=5 {
             diesel::insert_into(evm_wallet_access::table)
                 .values(NewEvmWalletAccess {
-                    wallet_id: 99,
+                    wallet_id: EvmWalletId::from_raw(99),
                     client_id: i,
                 })
                 .execute(&mut *conn)
@@ -422,7 +428,7 @@ mod tests {
         // Real target: wallet_id=1, will get id=6.
         let target = diesel::insert_into(evm_wallet_access::table)
             .values(NewEvmWalletAccess {
-                wallet_id: 1,
+                wallet_id: EvmWalletId::from_raw(1),
                 client_id: 1,
             })
             .returning(EvmWalletAccess::as_select())
@@ -432,7 +438,7 @@ mod tests {
 
         // Sanity: target.id != target.wallet_id
         assert_ne!(
-            target.id, target.wallet_id,
+            target.id, target.wallet_id.to_raw(),
             "test prerequisite: id and wallet_id must differ"
         );
 

server/crates/arbiter-server/src/peers/operator/vault_gate/mod.rs

@@ -10,7 +10,7 @@ use crate::{
 use arbiter_crypto::safecell::{SafeCell, SafeCellHandle as _};
 use state::State;
 
-use chacha20poly1305::{AeadInPlace, KeyInit as _, XChaCha20Poly1305, XNonce};
+use chacha20poly1305::{AeadInOut, KeyInit as _, XChaCha20Poly1305, XNonce};
 use kameo::{Actor, error::SendError, messages, prelude::Message};
 use kameo_actors::message_bus::Register;
 use tokio::sync::oneshot;
@@ -31,11 +31,13 @@ pub enum Error {
     #[error("State transition failed")]
     State,
 
-    /// Reaches the operator verbatim via `Status::internal`, so the payload is
-    /// `&'static str`: the type makes it impossible to interpolate an inner
-    /// error. Log the cause, send the constant.
     #[error("Internal error: {0}")]
-    Internal(&'static str),
+    Internal(String),
+}
+impl Error {
+    fn internal(message: impl Into<String>) -> Self {
+        Self::Internal(message.into())
+    }
 }
 
 pub struct HandshakeResponse {
@@ -99,14 +101,17 @@ impl VaultGate {
         ciphertext: &[u8],
         associated_data: &[u8],
     ) -> Result<SafeCell<Vec<u8>>, ()> {
-        let nonce = XNonce::from_slice(nonce);
+        let Ok(nonce) = XNonce::try_from(nonce) else {
+            error!("Encrypted key material carries a nonce of the wrong length");
+            return Err(());
+        };
 
         let cipher = XChaCha20Poly1305::new(secret.as_bytes().into());
 
         let mut key_buffer = SafeCell::new(ciphertext.to_vec());
 
         let decryption_result = key_buffer.write_inline(|write_handle| {
-            cipher.decrypt_in_place(nonce, associated_data, write_handle)
+            cipher.decrypt_in_place(&nonce, associated_data, write_handle)
         });
 
         match decryption_result {
@@ -177,7 +182,7 @@ impl VaultGate {
             }
             Err(err) => {
                 error!(?err, "Failed to send unseal request to vault");
-                Err(Error::Internal("Vault actor error"))
+                Err(Error::internal("Vault actor error"))
             }
         }
     }
@@ -219,7 +224,7 @@ impl VaultGate {
             }
             Err(err) => {
                 error!(?err, "Failed to send bootstrap request to vault");
-                Err(Error::Internal("Vault error"))
+                Err(Error::internal("Vault error"))
             }
         }
     }
@@ -231,10 +236,7 @@ impl VaultGate {
             .vault
             .ask(GetState {})
             .await
-            .map_err(|err| {
+            .map_err(|_| Error::internal("failed to query vault"))?;
-                error!(?err, "Failed to query vault state");
-                Error::Internal("failed to query vault")
-            })?;
 
         Ok(answer)
     }
@@ -253,10 +255,7 @@ impl Message<events::Bootstrapped> for VaultGate {
                 .db
                 .get()
                 .await
-                .map_err(|err| {
+                .map_err(|_| Error::internal("DB unavailable"))?;
-                    error!(error = %crate::utils::error_chain(&err), "DB unavailable on bootstrap");
-                    Error::Internal("DB unavailable")
-                })?;
             integrity::sign_entity(
                 &mut conn,
                 &self.actors.vault,
@@ -264,12 +263,9 @@ impl Message<events::Bootstrapped> for VaultGate {
                 self.auth_creds.id,
             )
             .await
-            .map_err(|err| {
+            .map_err(|e| {
-                error!(
+                error!(?e, "Failed to sign integrity envelope on bootstrap");
-                    error = %crate::utils::error_chain(&err),
+                Error::internal("Integrity sign failed")
-                    "Failed to sign integrity envelope on bootstrap"
-                );
-                Error::Internal("Integrity sign failed")
             })?;
             Ok(())
         }

server/crates/arbiter-server/src/utils.rs

@@ -14,47 +14,3 @@ impl<F: FnOnce()> Drop for DeferClosure<F> {
 pub fn defer<F: FnOnce()>(f: F) -> impl Drop + Sized {
     DeferClosure { f: Some(f) }
 }
-
-/// Renders an error together with its full `source` chain as `outer: inner: root`.
-///
-/// Error variants in this crate deliberately keep `Display` terse so that no
-/// internal detail can leak across the gRPC boundary. That same terseness would
-/// hide the cause in the logs, so use this for `tracing` fields, never in a
-/// wire payload.
-pub fn error_chain(err: &dyn core::error::Error) -> String {
-    let mut out = err.to_string();
-    let mut current = err.source();
-    while let Some(source) = current {
-        out.push_str(": ");
-        out.push_str(&source.to_string());
-        current = source.source();
-    }
-    out
-}
-
-#[cfg(test)]
-mod tests {
-    use super::error_chain;
-
-    #[derive(Debug, thiserror::Error)]
-    #[error("root")]
-    struct Root;
-
-    #[derive(Debug, thiserror::Error)]
-    #[error("middle")]
-    struct Middle(#[source] Root);
-
-    #[derive(Debug, thiserror::Error)]
-    #[error("outer")]
-    struct Outer(#[source] Middle);
-
-    #[test]
-    fn walks_the_whole_source_chain() {
-        assert_eq!(error_chain(&Root), "root", "a leaf error renders alone");
-        assert_eq!(
-            error_chain(&Outer(Middle(Root))),
-            "outer: middle: root",
-            "every source link must appear, in order"
-        );
-    }
-}

server/crates/arbiter-server/tests/client/auth.rs

@@ -16,7 +16,7 @@ use arbiter_server::{
 
 use diesel::{ExpressionMethods as _, NullableExpressionMethods as _, QueryDsl as _, insert_into};
 use diesel_async::RunQueryDsl;
-use ml_dsa::{KeyGen, MlDsa87, SigningKey, VerifyingKey, signature::Keypair};
+use ml_dsa::{Generate as _, MlDsa87, SigningKey, VerifyingKey, signature::Keypair};
 
 fn metadata(name: &str, description: Option<&str>, version: Option<&str>) -> ClientMetadata {
     ClientMetadata {
@@ -73,7 +73,7 @@ async fn insert_registered_client(
 
 fn sign_client_challenge(key: &SigningKey<MlDsa87>, challenge: &AuthChallenge) -> authn::Signature {
     let challenge = challenge.format();
-    key.signing_key()
+    key.expanded_key()
         .sign_deterministic(&challenge, CLIENT_CONTEXT)
         .unwrap()
         .into()
@@ -81,13 +81,13 @@ fn sign_client_challenge(key: &SigningKey<MlDsa87>, challenge: &AuthChallenge) -
 
 async fn insert_bootstrap_sentinel_operator(db: &db::DatabasePool) {
     let mut conn = db.get().await.unwrap();
-    let sentinel_key = verifying_key(&MlDsa87::key_gen(&mut rand::rng()))
+    let sentinel_key = verifying_key(&SigningKey::<MlDsa87>::generate())
         .encode()
         .0
         .to_vec();
 
-    insert_into(schema::operator_client::table)
+    insert_into(schema::operator_identity::table)
-        .values((schema::operator_client::public_key.eq(sentinel_key),))
+        .values((schema::operator_identity::public_key.eq(sentinel_key),))
         .execute(&mut conn)
         .await
         .unwrap();
@@ -120,7 +120,7 @@ pub async fn unregistered_pubkey_rejected() {
         connect_client(props, &mut server_transport).await;
     });
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
 
     test_transport
         .send(auth::Inbound::AuthChallengeRequest {
@@ -140,7 +140,7 @@ pub async fn challenge_auth() {
     let db = db::create_test_pool().await;
     let actors = spawn_test_actors(&db).await;
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
 
     Box::pin(insert_registered_client(
         &db,
@@ -206,7 +206,7 @@ pub async fn challenge_auth() {
 pub async fn metadata_unchanged_does_not_append_history() {
     let db = db::create_test_pool().await;
     let actors = spawn_test_actors(&db).await;
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     let requested = metadata("client", Some("desc"), Some("1.0.0"));
 
     Box::pin(insert_registered_client(
@@ -269,7 +269,7 @@ pub async fn metadata_unchanged_does_not_append_history() {
 pub async fn metadata_frozen_after_approval_ignores_reconnect_changes() {
     let db = db::create_test_pool().await;
     let actors = spawn_test_actors(&db).await;
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
 
     Box::pin(insert_registered_client(
         &db,
@@ -360,7 +360,7 @@ pub async fn challenge_auth_rejects_integrity_tag_mismatch() {
     let db = db::create_test_pool().await;
     let actors = spawn_test_actors(&db).await;
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     let requested = metadata("client", Some("desc"), Some("1.0.0"));
 
     {

server/crates/arbiter-server/tests/operator/auth.rs

@@ -14,7 +14,7 @@ use arbiter_server::{
 use async_trait::async_trait;
 use diesel::{ExpressionMethods as _, QueryDsl, insert_into};
 use diesel_async::RunQueryDsl;
-use ml_dsa::{KeyGen, MlDsa87, SigningKey, VerifyingKey, signature::Keypair};
+use ml_dsa::{Generate as _, MlDsa87, SigningKey, VerifyingKey, signature::Keypair};
 use tokio::sync::mpsc;
 
 fn verifying_key(key: &SigningKey<MlDsa87>) -> VerifyingKey<MlDsa87> {
@@ -26,7 +26,7 @@ fn sign_operator_challenge(
     challenge: &AuthChallenge,
 ) -> authn::Signature {
     let challenge = challenge.format();
-    key.signing_key()
+    key.expanded_key()
         .sign_deterministic(&challenge, OPERATOR_CONTEXT)
         .unwrap()
         .into()
@@ -170,7 +170,7 @@ pub async fn bootstrap_token_auth() {
         auth::authenticate(&mut props, &mut server_transport).await
     });
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     test_transport
         .send(auth::Inbound::AuthChallengeRequest {
             pubkey: verifying_key(&new_key).into(),
@@ -206,8 +206,8 @@ pub async fn bootstrap_token_auth() {
     task.await.unwrap().unwrap();
 
     let mut conn = db.get().await.unwrap();
-    let stored_pubkey: Vec<u8> = schema::operator_client::table
+    let stored_pubkey: Vec<u8> = schema::operator_identity::table
-        .select(schema::operator_client::public_key)
+        .select(schema::operator_identity::public_key)
         .first::<Vec<u8>>(&mut conn)
         .await
         .unwrap();
@@ -227,7 +227,7 @@ pub async fn bootstrap_invalid_token_auth() {
         auth::authenticate(&mut props, &mut server_transport).await
     });
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     test_transport
         .send(auth::Inbound::AuthChallengeRequest {
             pubkey: verifying_key(&new_key).into(),
@@ -259,7 +259,7 @@ pub async fn bootstrap_invalid_token_auth() {
     ));
 
     let mut conn = db.get().await.unwrap();
-    let count: i64 = schema::operator_client::table
+    let count: i64 = schema::operator_identity::table
         .count()
         .get_result::<i64>(&mut conn)
         .await
@@ -280,14 +280,14 @@ pub async fn challenge_auth() {
         .await
         .unwrap();
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     let pubkey_bytes = authn::PublicKey::from(verifying_key(&new_key)).to_bytes();
 
     {
         let mut conn = db.get().await.unwrap();
-        let id: i32 = insert_into(schema::operator_client::table)
+        let id: i32 = insert_into(schema::operator_identity::table)
-            .values((schema::operator_client::public_key.eq(pubkey_bytes.clone()),))
+            .values((schema::operator_identity::public_key.eq(pubkey_bytes.clone()),))
-            .returning(schema::operator_client::id)
+            .returning(schema::operator_identity::id)
             .get_result(&mut conn)
             .await
             .unwrap();
@@ -366,13 +366,13 @@ pub async fn challenge_auth_rejects_integrity_tag_mismatch_when_unsealed() {
         .await
         .unwrap();
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     let pubkey_bytes = authn::PublicKey::from(verifying_key(&new_key)).to_bytes();
 
     {
         let mut conn = db.get().await.unwrap();
-        insert_into(schema::operator_client::table)
+        insert_into(schema::operator_identity::table)
-            .values((schema::operator_client::public_key.eq(pubkey_bytes.clone()),))
+            .values((schema::operator_identity::public_key.eq(pubkey_bytes.clone()),))
             .execute(&mut conn)
             .await
             .unwrap();
@@ -439,14 +439,14 @@ pub async fn challenge_auth_rejects_invalid_signature() {
         .await
         .unwrap();
 
-    let new_key = MlDsa87::key_gen(&mut rand::rng());
+    let new_key = SigningKey::<MlDsa87>::generate();
     let pubkey_bytes = authn::PublicKey::from(verifying_key(&new_key)).to_bytes();
 
     {
         let mut conn = db.get().await.unwrap();
-        let id: i32 = insert_into(schema::operator_client::table)
+        let id: i32 = insert_into(schema::operator_identity::table)
-            .values((schema::operator_client::public_key.eq(pubkey_bytes.clone()),))
+            .values((schema::operator_identity::public_key.eq(pubkey_bytes.clone()),))
-            .returning(schema::operator_client::id)
+            .returning(schema::operator_identity::id)
             .get_result(&mut conn)
             .await
             .unwrap();

server/crates/arbiter-server/tests/operator/unseal.rs

@@ -16,7 +16,7 @@ use arbiter_server::{
     },
 };
 
-use chacha20poly1305::{AeadInPlace, XChaCha20Poly1305, XNonce, aead::KeyInit};
+use chacha20poly1305::{AeadInOut, XChaCha20Poly1305, XNonce, aead::KeyInit};
 use kameo::actor::Spawn as _;
 use tokio::sync::oneshot;
 use x25519_dalek::{EphemeralSecret, PublicKey};