feat: Add axum-extra dependency and implement typed headers

feat: Define unique index on users table for email and fix minor syntax error

refactor: Update permissions_guard to use claims from JWT and improve user retrieval

refactor: Modify user-related service methods to accept user details directly

fix: Update token generation functions to include user ID and permissions

test: Update Google OAuth flow tests to reflect changes in token generation

Cargo.toml

@@ -40,6 +40,7 @@ validator = { version = "0.20.0", features = ["derive"] }
 lazy_static = "1.4.0"
 regex = "1.11.1"
 axum-test = "17.2.0"
+axum-extra = { version = "0.10.1", features = ["typed-header"] }
 fancy-regex = "0.15.0"
 futures = "0.3.31"
 tower = "0.5.2"