housekeeping(server): clean too-broad visibility markers and organize imports

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

@@ -1,5 +1,4 @@
 use argon2::password_hash::Salt as ArgonSalt;
-
 use rand::{
     Rng as _, SeedableRng,
     rngs::{StdRng, SysRng},
@@ -63,7 +62,7 @@ mod tests {
     use arbiter_crypto::safecell::{SafeCell, SafeCellHandle as _};
 
     #[test]
-    pub fn derive_seal_key_deterministic() {
+    fn derive_seal_key_deterministic() {
         static PASSWORD: &[u8] = b"password";
         let password = SafeCell::new(PASSWORD.to_vec());
         let password2 = SafeCell::new(PASSWORD.to_vec());
@@ -79,7 +78,7 @@ mod tests {
     }
 
     #[test]
-    pub fn successful_derive() {
+    fn successful_derive() {
         static PASSWORD: &[u8] = b"password";
         let password = SafeCell::new(PASSWORD.to_vec());
         let salt = generate_salt();
@@ -93,7 +92,7 @@ mod tests {
 
     #[test]
     // We should fuzz this
-    pub fn test_nonce_increment() {
+    fn test_nonce_increment() {
         let mut nonce = Nonce([0u8; NONCE_LENGTH]);
         nonce.increment();