feat: implement database schema discovery and management services with frontend integration

backend/app/Contracts/DatabaseDriverInterface.php

@@ -48,4 +48,34 @@ interface DatabaseDriverInterface
      * Get database metadata (charset, collation, size, etc.)
      */
     public function getDatabaseMetadata(string $database): array;
+
+    /**
+     * Get table metadata.
+     */
+    public function getTableMetadata(string $database, string $table): array;
+
+    /**
+     * Get metadata for all tables in a database.
+     */
+    public function getTablesMetadata(string $database): array;
+
+    /**
+     * Truncate a table.
+     */
+    public function truncateTable(string $table): bool;
+
+    /**
+     * Drop a table.
+     */
+    public function dropTable(string $table): bool;
+
+    /**
+     * Optimize a table.
+     */
+    public function optimizeTable(string $table): bool;
+
+    /**
+     * Perform batch update on a table.
+     */
+    public function batchUpdate(string $table, array $changes): bool;
 }