Harden build: fix verify.ts, add postinstall bootstrap, expand typecheck

- Remove unused getPlatform() and os.homedir() calls from setup/verify.ts
- Add postinstall script to bootstrap container/agent-runner on fresh clone
- Add tsconfig.check.json covering setup/, scripts/, skills-engine/
- Wire extended typecheck into npm run typecheck

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ziggy

package.json

@@ -5,11 +5,12 @@
   "type": "module",
   "main": "dist/index.js",
   "scripts": {
+    "postinstall": "cd container/agent-runner && npm install --ignore-scripts && npx tsc",
     "build": "tsc",
     "start": "node dist/index.js",
     "dev": "tsx src/index.ts",
     "auth": "tsx src/whatsapp-auth.ts",
-    "typecheck": "tsc --noEmit",
+    "typecheck": "tsc --noEmit && tsc -p tsconfig.check.json",
     "format": "prettier --write \"src/**/*.ts\"",
     "format:fix": "prettier --write \"src/**/*.ts\"",
     "format:check": "prettier --check \"src/**/*.ts\"",

setup/verify.ts

@@ -17,8 +17,6 @@ import { emitStatus } from './status.js';
 
 export async function run(_args: string[]): Promise<void> {
   const projectRoot = process.cwd();
-  const platform = getPlatform();
-  const homeDir = os.homedir();
 
   logger.info('Starting verification');
 

tsconfig.check.json

@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": ".",
+    "outDir": "./dist-check",
+    "noEmit": true
+  },
+  "include": ["src/**/*", "setup/**/*", "scripts/**/*", "skills-engine/**/*"],
+  "exclude": ["node_modules", "dist", "dist-check", "**/*.test.ts"]
+}