refactor: Restructure monorepo to apps/server/ and apps/web/ layout

Move src/ → apps/server/ and packages/web/ → apps/web/ to adopt
standard monorepo conventions (apps/ for runnable apps, packages/
for reusable libraries). Update all config files, shared package
imports, test fixtures, and documentation to reflect new paths.

Key fixes:
- Update workspace config to ["apps/*", "packages/*"]
- Update tsconfig.json rootDir/include for apps/server/
- Add apps/web/** to vitest exclude list
- Update drizzle.config.ts schema path
- Fix ensure-schema.ts migration path detection (3 levels up in dev,
  2 levels up in dist)
- Fix tests/integration/cli-server.test.ts import paths
- Update packages/shared imports to apps/server/ paths
- Update all docs/ files with new paths

apps/server/bin/cw.ts

@@ -0,0 +1,31 @@
+#!/usr/bin/env node
+/**
+ * Codewalk District CLI Entry Point
+ *
+ * Users can install globally via:
+ * - npm link (during development)
+ * - npm i -g codewalk-district (for release)
+ */
+
+import { runCli } from '../cli/index.js';
+import { logger } from '../logger/index.js';
+
+// Handle uncaught errors gracefully
+process.on('uncaughtException', (error) => {
+  logger.fatal({ err: error }, 'uncaught exception');
+  console.error('Fatal error:', error.message);
+  process.exit(1);
+});
+
+process.on('unhandledRejection', (reason) => {
+  logger.fatal({ err: reason }, 'unhandled rejection');
+  console.error('Unhandled promise rejection:', reason);
+  process.exit(1);
+});
+
+// Run the CLI
+runCli().catch((error) => {
+  logger.fatal({ err: error }, 'CLI fatal error');
+  console.error('CLI error:', error.message);
+  process.exit(1);
+});