feat: implement dynamic database connection service with MySQL driver and API schema endpoints

backend/app/Contracts/DatabaseDriverInterface.php

@@ -14,6 +14,16 @@ interface DatabaseDriverInterface
      */
     public function query(string $sql, array $bindings = []): array;
 
+    /**
+     * Get the table schema.
+     */
+    public function getTableSchema(string $table): array;
+
+    /**
+     * Get table data.
+     */
+    public function getTableData(string $table, int $limit = 100, int $offset = 0): array;
+
     /**
      * Get the underlying connection instance.
      */

backend/app/Http/Controllers/Api/SchemaController.php

@@ -60,4 +60,16 @@ class SchemaController extends Controller
             return Response::json(['error' => $e->getMessage()], 400);
         }
     }
+
+    public function data(Request $request, $table)
+    {
+        try {
+            $this->initializeDriver($request);
+            $limit = $request->get('limit', 100);
+            $offset = $request->get('offset', 0);
+            return Response::json($this->databaseService->getTableData($table, $limit, $offset));
+        } catch (\Exception $e) {
+            return Response::json(['error' => $e->getMessage()], 400);
+        }
+    }
 }

backend/app/Services/Database/MySqlDriver.php

@@ -64,6 +64,11 @@ class MySqlDriver implements DatabaseDriverInterface, SchemaDiscoveryInterface
         return $this->query("DESCRIBE `{$table}`");
     }
 
+    public function getTableData(string $table, int $limit = 100, int $offset = 0): array
+    {
+        return $this->query("SELECT * FROM `{$table}` LIMIT ? OFFSET ?", [$limit, $offset]);
+    }
+
     public function getForeignKeys(string $table): array
     {
         $sql = "

backend/app/Services/DatabaseService.php

@@ -74,4 +74,12 @@ class DatabaseService
         }
         throw new \Exception("Driver does not support schema discovery.");
     }
+
+    /**
+     * Get table data.
+     */
+    public function getTableData(string $table, int $limit = 100, int $offset = 0): array
+    {
+        return $this->getDriver()->getTableData($table, $limit, $offset);
+    }
 }

backend/routes/api.php

@@ -12,4 +12,5 @@ Route::prefix('schema')->group(function () {
     Route::get('/databases', [SchemaController::class, 'databases']);
     Route::get('/tables/{database}', [SchemaController::class, 'tables']);
     Route::get('/{table}', [SchemaController::class, 'schema']);
+    Route::get('/{table}/data', [SchemaController::class, 'data']);
 });