feat: Implement data import and export functionality for notes and tags.

notes-api/src/routes/mod.rs

@@ -1,6 +1,7 @@
 //! Route definitions and module structure
 
 pub mod auth;
+pub mod import_export;
 pub mod notes;
 pub mod tags;
 
@@ -29,6 +30,9 @@ pub fn api_v1_router() -> Router<AppState> {
         )
         // Search route
         .route("/search", get(notes::search_notes))
+        // Import/Export routes
+        .route("/export", get(import_export::export_data))
+        .route("/import", post(import_export::import_data))
         // Tag routes
         .route("/tags", get(tags::list_tags).post(tags::create_tag))
         .route("/tags/{id}", delete(tags::delete_tag))