feat: complete tOS project with HR, LEAN, Dashboard and Integrations modules

Full enterprise web operating system including:
- Next.js 14 frontend with App Router, i18n (DE/EN), shadcn/ui
- NestJS 10 backend with Prisma, JWT auth, Swagger docs
- Keycloak 24 SSO with role-based access control
- HR module (employees, time tracking, absences, org chart)
- LEAN module (3S planning, morning meeting SQCDM, skill matrix)
- Integrations module (PlentyONE, Zulip, Todoist, FreeScout, Nextcloud, ecoDMS, GembaDocs)
- Dashboard with customizable drag & drop widget grid
- Docker Compose infrastructure (PostgreSQL 16, Redis 7, Keycloak 24)

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

apps/web/.gitignore

@@ -0,0 +1,48 @@
+# Dependencies
+node_modules
+.pnp
+.pnp.js
+
+# Testing
+coverage
+
+# Next.js
+.next/
+out/
+build
+
+# Production
+dist
+
+# Misc
+.DS_Store
+*.pem
+
+# Debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# Local env files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Vercel
+.vercel
+
+# TypeScript
+*.tsbuildinfo
+next-env.d.ts
+
+# IDE
+.idea
+.vscode
+*.swp
+*.swo
+
+# Turbo
+.turbo