diff --git a/backend/sync_server/src/server/create_document.rs b/backend/sync_server/src/server/create_document.rs
index 3b9bc794..67969e84 100644
--- a/backend/sync_server/src/server/create_document.rs
+++ b/backend/sync_server/src/server/create_document.rs
@@ -11,12 +11,16 @@ use serde::Deserialize;
 use sync_lib::base64_to_bytes;
 
 use super::{
-    app_state::AppState,
     auth::auth,
     requests::{CreateDocumentVersion, CreateDocumentVersionMultipart},
 };
 use crate::{
-    database::models::{DocumentId, DocumentVersionWithoutContent, StoredDocumentVersion, VaultId},
+    app_state::{
+        AppState,
+        database::models::{
+            DocumentId, DocumentVersionWithoutContent, StoredDocumentVersion, VaultId,
+        },
+    },
     errors::{SyncServerError, client_error, server_error},
     utils::sanitize_path,
 };
@@ -77,7 +81,7 @@ pub async fn create_document_json(
 
 async fn internal_create_document(
     auth_header: Authorization<Bearer>,
-    mut state: AppState,
+    state: AppState,
     vault_id: VaultId,
     document_id: Option<DocumentId>,
     relative_path: String,
diff --git a/backend/sync_server/src/server/delete_document.rs b/backend/sync_server/src/server/delete_document.rs
index 4d940852..74327198 100644
--- a/backend/sync_server/src/server/delete_document.rs
+++ b/backend/sync_server/src/server/delete_document.rs
@@ -8,9 +8,14 @@ use axum_jsonschema::Json;
 use schemars::JsonSchema;
 use serde::Deserialize;
 
-use super::{app_state::AppState, auth::auth, requests::DeleteDocumentVersion};
+use super::{auth::auth, requests::DeleteDocumentVersion};
 use crate::{
-    database::models::{DocumentId, DocumentVersionWithoutContent, StoredDocumentVersion, VaultId},
+    app_state::{
+        AppState,
+        database::models::{
+            DocumentId, DocumentVersionWithoutContent, StoredDocumentVersion, VaultId,
+        },
+    },
     errors::{SyncServerError, server_error},
     utils::sanitize_path,
 };
@@ -29,7 +34,7 @@ pub async fn delete_document(
         vault_id,
         document_id,
     }): Path<DeleteDocumentPathParams>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
     Json(request): Json<DeleteDocumentVersion>,
 ) -> Result<Json<DocumentVersionWithoutContent>, SyncServerError> {
     auth(&state, auth_header.token())?;
diff --git a/backend/sync_server/src/server/fetch_document_version.rs b/backend/sync_server/src/server/fetch_document_version.rs
index be488c18..aab06c85 100644
--- a/backend/sync_server/src/server/fetch_document_version.rs
+++ b/backend/sync_server/src/server/fetch_document_version.rs
@@ -8,9 +8,12 @@ use axum_jsonschema::Json;
 use schemars::JsonSchema;
 use serde::Deserialize;
 
-use super::{app_state::AppState, auth::auth};
+use super::auth::auth;
 use crate::{
-    database::models::{DocumentId, DocumentVersion, VaultId, VaultUpdateId},
+    app_state::{
+        AppState,
+        database::models::{DocumentId, DocumentVersion, VaultId, VaultUpdateId},
+    },
     errors::{SyncServerError, not_found_error, server_error},
 };
 
@@ -30,7 +33,7 @@ pub async fn fetch_document_version(
         document_id,
         vault_update_id,
     }): Path<FetchDocumentVersionPathParams>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<Json<DocumentVersion>, SyncServerError> {
     auth(&state, auth_header.token())?;
 
diff --git a/backend/sync_server/src/server/fetch_document_version_content.rs b/backend/sync_server/src/server/fetch_document_version_content.rs
index 746c9b3a..a2504ba1 100644
--- a/backend/sync_server/src/server/fetch_document_version_content.rs
+++ b/backend/sync_server/src/server/fetch_document_version_content.rs
@@ -10,9 +10,12 @@ use axum_extra::{
 use schemars::JsonSchema;
 use serde::Deserialize;
 
-use super::{app_state::AppState, auth::auth};
+use super::auth::auth;
 use crate::{
-    database::models::{DocumentId, VaultId, VaultUpdateId},
+    app_state::{
+        AppState,
+        database::models::{DocumentId, VaultId, VaultUpdateId},
+    },
     errors::{SyncServerError, not_found_error, server_error},
 };
 
@@ -32,7 +35,7 @@ pub async fn fetch_document_version_content(
         document_id,
         vault_update_id,
     }): Path<FetchDocumentVersionContentPathParams>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<Bytes, SyncServerError> {
     auth(&state, auth_header.token())?;
 
diff --git a/backend/sync_server/src/server/fetch_latest_document_version.rs b/backend/sync_server/src/server/fetch_latest_document_version.rs
index c9c2fdec..ec777f30 100644
--- a/backend/sync_server/src/server/fetch_latest_document_version.rs
+++ b/backend/sync_server/src/server/fetch_latest_document_version.rs
@@ -8,9 +8,12 @@ use axum_jsonschema::Json;
 use schemars::JsonSchema;
 use serde::Deserialize;
 
-use super::{app_state::AppState, auth::auth};
+use super::auth::auth;
 use crate::{
-    database::models::{DocumentId, DocumentVersion, VaultId},
+    app_state::{
+        AppState,
+        database::models::{DocumentId, DocumentVersion, VaultId},
+    },
     errors::{SyncServerError, not_found_error, server_error},
 };
 
@@ -28,7 +31,7 @@ pub async fn fetch_latest_document_version(
         vault_id,
         document_id,
     }): Path<FetchLatestDocumentVersionPathParams>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<Json<DocumentVersion>, SyncServerError> {
     auth(&state, auth_header.token())?;
 
diff --git a/backend/sync_server/src/server/fetch_latest_documents.rs b/backend/sync_server/src/server/fetch_latest_documents.rs
index 89197c2e..2b4dc841 100644
--- a/backend/sync_server/src/server/fetch_latest_documents.rs
+++ b/backend/sync_server/src/server/fetch_latest_documents.rs
@@ -7,9 +7,12 @@ use axum_jsonschema::Json;
 use schemars::JsonSchema;
 use serde::Deserialize;
 
-use super::{app_state::AppState, auth::auth, responses::FetchLatestDocumentsResponse};
+use super::{auth::auth, responses::FetchLatestDocumentsResponse};
 use crate::{
-    database::models::{VaultId, VaultUpdateId},
+    app_state::{
+        AppState,
+        database::models::{VaultId, VaultUpdateId},
+    },
     errors::{SyncServerError, server_error},
 };
 
@@ -30,7 +33,7 @@ pub async fn fetch_latest_documents(
     TypedHeader(auth_header): TypedHeader<Authorization<Bearer>>,
     Path(FetchLatestDocumentsPathParams { vault_id }): Path<FetchLatestDocumentsPathParams>,
     Query(QueryParams { since_update_id }): Query<QueryParams>,
-    State(mut state): State<AppState>,
+    State(state): State<AppState>,
 ) -> Result<Json<FetchLatestDocumentsResponse>, SyncServerError> {
     auth(&state, auth_header.token())?;
 
diff --git a/backend/sync_server/src/server/ping.rs b/backend/sync_server/src/server/ping.rs
index 1823c9f9..1fe75ee6 100644
--- a/backend/sync_server/src/server/ping.rs
+++ b/backend/sync_server/src/server/ping.rs
@@ -4,8 +4,8 @@ use axum_extra::{
     headers::{Authorization, authorization::Bearer},
 };
 
-use super::{app_state::AppState, auth::auth, responses::PingResponse};
-use crate::errors::SyncServerError;
+use super::{auth::auth, responses::PingResponse};
+use crate::{app_state::AppState, errors::SyncServerError};
 
 #[axum::debug_handler]
 pub async fn ping(