feat(desktop): add connection-level database browser

crates/dbx-web/src/main.rs

@@ -390,6 +390,7 @@ async fn main() {
         .route("/agents/progress/{operationId}", get(routes::agents::agent_progress))
         // Schema
         .route("/schema/databases", get(routes::schema::list_databases))
+        .route("/schema/database-metadata", get(routes::schema::list_database_metadata))
         .route("/schema/database-storage", post(routes::schema::list_database_storage))
         .route("/schema/sqlserver/completion-context", get(routes::schema::get_sqlserver_completion_context))
         .route("/schema/doris/catalogs", get(routes::schema::list_doris_catalogs))

crates/dbx-web/src/routes/schema.rs

@@ -42,6 +42,15 @@ pub async fn list_databases(
     Ok(Json(serde_json::to_value(result).map_err(|e| AppError::from(e.to_string()))?))
 }
 
+pub async fn list_database_metadata(
+    State(state): State<Arc<WebState>>,
+    Query(q): Query<SchemaQuery>,
+) -> Result<Json<serde_json::Value>, AppError> {
+    let result =
+        dbx_core::schema::list_database_metadata_core(&state.app, &q.connection_id).await.map_err(AppError::from)?;
+    Ok(Json(serde_json::to_value(result).map_err(|e| AppError::from(e.to_string()))?))
+}
+
 pub async fn list_database_storage(
     State(state): State<Arc<WebState>>,
     Json(request): Json<DatabaseStorageRequest>,