feat: Space Booking System - MVP complet

Sistem web pentru rezervarea de birouri și săli de ședință
cu flux de aprobare administrativă.

Stack: FastAPI + Vue.js 3 + SQLite + TypeScript

Features implementate:
- Autentificare JWT + Self-registration cu email verification
- CRUD Spații, Utilizatori, Settings (Admin)
- Calendar interactiv (FullCalendar) cu drag-and-drop
- Creare rezervări cu validare (durată, program, overlap, max/zi)
- Rezervări recurente (săptămânal)
- Admin: aprobare/respingere/anulare cereri
- Admin: creare directă rezervări (bypass approval)
- Admin: editare orice rezervare
- User: editare/anulare rezervări proprii
- Notificări in-app (bell icon + dropdown)
- Notificări email (async SMTP cu BackgroundTasks)
- Jurnal acțiuni administrative (audit log)
- Rapoarte avansate (utilizare, top users, approval rate)
- Șabloane rezervări (booking templates)
- Atașamente fișiere (upload/download)
- Conflict warnings (verificare disponibilitate real-time)
- Integrare Google Calendar (OAuth2)
- Suport timezone (UTC storage + user preference)
- 225+ teste backend

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

backend/app/main.py

@@ -0,0 +1,64 @@
+"""FastAPI application entry point."""
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from app.api.attachments import router as attachments_router
+from app.api.audit_log import router as audit_log_router
+from app.api.auth import router as auth_router
+from app.api.booking_templates import router as booking_templates_router
+from app.api.bookings import admin_router as bookings_admin_router
+from app.api.bookings import bookings_router
+from app.api.bookings import router as spaces_bookings_router
+from app.api.google_calendar import router as google_calendar_router
+from app.api.notifications import router as notifications_router
+from app.api.reports import router as reports_router
+from app.api.settings import router as settings_router
+from app.api.spaces import admin_router as spaces_admin_router
+from app.api.spaces import router as spaces_router
+from app.api.users import admin_router as users_admin_router
+from app.api.users import router as users_router
+from app.core.config import settings
+from app.db.session import Base, engine
+
+# Create database tables
+Base.metadata.create_all(bind=engine)
+
+app = FastAPI(title=settings.app_name)
+
+# CORS middleware
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["http://localhost:5173"],  # Frontend dev server
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Include routers
+app.include_router(auth_router, prefix="/api")
+app.include_router(users_router, prefix="/api")
+app.include_router(users_admin_router, prefix="/api")
+app.include_router(spaces_router, prefix="/api")
+app.include_router(spaces_admin_router, prefix="/api")
+app.include_router(spaces_bookings_router, prefix="/api")
+app.include_router(bookings_router, prefix="/api")
+app.include_router(bookings_admin_router, prefix="/api")
+app.include_router(booking_templates_router, prefix="/api")
+app.include_router(settings_router, prefix="/api")
+app.include_router(notifications_router, prefix="/api")
+app.include_router(audit_log_router, prefix="/api", tags=["audit-log"])
+app.include_router(attachments_router, prefix="/api", tags=["attachments"])
+app.include_router(reports_router, prefix="/api", tags=["reports"])
+app.include_router(google_calendar_router, prefix="/api", tags=["google-calendar"])
+
+
+@app.get("/")
+def root() -> dict[str, str]:
+    """Root endpoint."""
+    return {"message": "Space Booking API"}
+
+
+@app.get("/health")
+def health() -> dict[str, str]:
+    """Health check endpoint."""
+    return {"status": "ok"}