feat: add centralized build validation command and refactor port configuration

- Introduced a new command for validating project builds, providing detailed instructions for running builds and intelligently fixing failures based on recent changes.
- Refactored port configuration by centralizing it in the @automaker/types package for improved maintainability and backward compatibility.
- Updated imports in various modules to reflect the new centralized port configuration, ensuring consistent usage across the application.

libs/types/src/index.ts

@@ -140,3 +140,6 @@ export type {
   PipelineStatus,
   FeatureStatusWithPipeline,
 } from './pipeline.js';
+
+// Port configuration
+export { STATIC_PORT, SERVER_PORT, RESERVED_PORTS } from './ports.js';

libs/types/src/ports.ts

@@ -0,0 +1,15 @@
+/**
+ * Centralized port configuration for AutoMaker
+ *
+ * These ports are reserved for the Automaker application and should never be
+ * killed or terminated by AI agents during feature implementation.
+ */
+
+/** Port for the static/UI server (Vite dev server) */
+export const STATIC_PORT = 3007;
+
+/** Port for the backend API server (Express + WebSocket) */
+export const SERVER_PORT = 3008;
+
+/** Array of all reserved Automaker ports */
+export const RESERVED_PORTS = [STATIC_PORT, SERVER_PORT] as const;