fix: remove ignoreBuildErrors and resolve typed-route errors (#8)

[odiseusme]

Fixes #8.

• Removes typescript: { ignoreBuildErrors: true } from apps/guard/next.config.js and apps/watcher/next.config.js.
• Resolves the two TypeScript errors that surfaced in apps/watcher/src/app/App.tsx:
  • Anchor wrapper now casts props.href to Route for compatibility with typedRoutes: true
  • push router method now casts href to Route for the same reason
• npm run type-check passes cleanly in both apps/guard and apps/watcher with the flag removed.
• lint-staged hooks (prettier, eslint, type-check, knip) all pass.
• No package.json or package-lock.json changes.

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