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/logger/index.ts

@@ -0,0 +1,28 @@
+import pino from 'pino';
+
+function resolveLevel(): string {
+  if (process.env.CW_LOG_LEVEL) return process.env.CW_LOG_LEVEL;
+  return process.env.NODE_ENV === 'development' ? 'debug' : 'info';
+}
+
+export const logger = pino(
+  {
+    name: 'cw',
+    level: resolveLevel(),
+    ...(process.env.CW_LOG_PRETTY === '1' && {
+      transport: {
+        target: 'pino-pretty',
+        options: {
+          colorize: true,
+          ignore: 'pid,hostname',
+          translateTime: 'HH:MM:ss.l',
+        },
+      },
+    }),
+  },
+  process.env.CW_LOG_PRETTY === '1' ? undefined : pino.destination(2),
+);
+
+export function createModuleLogger(module: string) {
+  return logger.child({ module });
+}