feat(mcp): enhance MCP installation with status tracking and custom configs

- Add /mcp-servers/ to .gitignore for MCP server installations
- Extend mcp_installations table with status, logs, and validation fields
- Refactor MCP install route to support custom configs, enable logs, and async installation
- Improve MCPSyncService with promise-based syncing to prevent concurrent operations

This update improves MCP management by adding robust installation tracking, custom configuration support, and better error handling for a more reliable user experience.

lib/config/mcp.ts

@@ -0,0 +1,33 @@
+/**
+ * Configurações para instalação e gerenciamento de servidores MCP
+ */
+
+import path from "path";
+
+export const MCP_CONFIG = {
+  // Diretório base onde os servidores MCP serão instalados
+  serversDir:
+    process.env.MCP_SERVERS_DIR || path.join(process.cwd(), "mcp-servers"),
+
+  // Timeout para instalação de pacotes (5 minutos)
+  installTimeout: parseInt(process.env.MCP_INSTALL_TIMEOUT || "300000", 10),
+
+  // Timeout para testes de servidor (10 segundos)
+  testTimeout: parseInt(process.env.MCP_TEST_TIMEOUT || "10000", 10),
+
+  // Habilitar logs detalhados (para debug/testes)
+  enableLogs: process.env.MCP_ENABLE_LOGS === "true",
+
+  // Diretórios por tipo de pacote
+  get npmDir() {
+    return path.join(this.serversDir, "npm");
+  },
+
+  get pythonDir() {
+    return path.join(this.serversDir, "python");
+  },
+
+  get rustDir() {
+    return path.join(this.serversDir, "rust");
+  },
+};