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/api/audit_log.py

@@ -0,0 +1,59 @@
+"""Audit log API endpoints."""
+from datetime import datetime
+from typing import Annotated, Optional
+
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.orm import Session, joinedload
+
+from app.core.deps import get_current_admin, get_db
+from app.models.audit_log import AuditLog
+from app.models.user import User
+from app.schemas.audit_log import AuditLogRead
+
+router = APIRouter()
+
+
+@router.get("/admin/audit-log", response_model=list[AuditLogRead])
+def get_audit_logs(
+    action: Annotated[Optional[str], Query()] = None,
+    start_date: Annotated[Optional[datetime], Query()] = None,
+    end_date: Annotated[Optional[datetime], Query()] = None,
+    page: Annotated[int, Query(ge=1)] = 1,
+    limit: Annotated[int, Query(ge=1, le=100)] = 50,
+    db: Session = Depends(get_db),
+    current_admin: User = Depends(get_current_admin),
+) -> list[AuditLogRead]:
+    """
+    Get audit logs with filtering and pagination.
+
+    Admin only endpoint to view audit trail of administrative actions.
+    """
+    query = db.query(AuditLog).options(joinedload(AuditLog.user))
+
+    # Apply filters
+    if action:
+        query = query.filter(AuditLog.action == action)
+    if start_date:
+        query = query.filter(AuditLog.created_at >= start_date)
+    if end_date:
+        query = query.filter(AuditLog.created_at <= end_date)
+
+    # Pagination
+    offset = (page - 1) * limit
+    logs = query.order_by(AuditLog.created_at.desc()).offset(offset).limit(limit).all()
+
+    # Map to response schema with user details
+    return [
+        AuditLogRead(
+            id=log.id,
+            action=log.action,
+            user_id=log.user_id,
+            user_name=log.user.full_name,
+            user_email=log.user.email,
+            target_type=log.target_type,
+            target_id=log.target_id,
+            details=log.details,
+            created_at=log.created_at,
+        )
+        for log in logs
+    ]