feat(auth): implement JWT authentication and user registration

- Added JWT authentication with token generation and validation.
- Introduced user registration functionality with email and password.
- Integrated Argon2 for password hashing.
- Created SQLite user repository for user data persistence.
- Updated application context to include user repository and configuration settings.
- Added environment variable support for JWT secret and registration allowance.
- Enhanced error handling for unauthorized access and validation errors.
- Updated presentation layer to handle login and registration requests.

crates/application/src/commands.rs

@@ -18,3 +18,13 @@ pub struct SyncPosterCommand {
     pub movie_id: Uuid,
     pub external_metadata_id: String,
 }
+
+pub struct LoginCommand {
+    pub email: String,
+    pub password: String,
+}
+
+pub struct RegisterCommand {
+    pub email: String,
+    pub password: String,
+}