feat: implementar Fase 2 del roadmap (Modo Replica Exacta / Mirroring)

backend/app/api/jobs.py

@@ -5,11 +5,14 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy import select, func, desc
 
 from app.core.database import get_db
-from app.models.models import User, Client, BackupJob
-from app.schemas.schemas import JobCreate, JobUpdate, JobResponse, AgentJobRegister
+from app.models.models import User, Client, BackupJob, BackupFile
+from app.schemas.schemas import JobCreate, JobUpdate, JobResponse, AgentJobRegister, PurgeOrphansRequest
 from app.api.deps import get_current_user, require_admin, get_current_client
 from app.services.event_service import log_event
 from app.ws.manager import ws_manager
+import logging
+
+logger = logging.getLogger("uvicorn.error")
 
 router = APIRouter(prefix="/jobs", tags=["Backup Jobs"])
 
@@ -53,6 +56,11 @@ async def agent_register_job(
         name=payload.name,
         source_path=payload.source_path,
         file_patterns=payload.file_patterns,
+        exclude_patterns=payload.exclude_patterns,
+        skip_hidden=payload.skip_hidden,
+        skip_system=payload.skip_system,
+        skip_readonly=payload.skip_readonly,
+        sync_deletions=payload.sync_deletions,
         schedule_cron=payload.schedule_cron,
         keep_daily=payload.keep_daily,
         keep_weekly=payload.keep_weekly,
@@ -126,6 +134,11 @@ async def create_job(
         name=payload.name,
         source_path=payload.source_path,
         file_patterns=payload.file_patterns,
+        exclude_patterns=payload.exclude_patterns,
+        skip_hidden=payload.skip_hidden,
+        skip_system=payload.skip_system,
+        skip_readonly=payload.skip_readonly,
+        sync_deletions=payload.sync_deletions,
         schedule_cron=payload.schedule_cron,
         keep_daily=payload.keep_daily,
         keep_weekly=payload.keep_weekly,
@@ -241,3 +254,71 @@ async def trigger_job(
     })
 
     return {"message": f"Job {job.job_code} triggered"}
+
+@router.post("/{job_id}/purge-orphans")
+async def purge_orphans(
+    job_id: int,
+    payload: PurgeOrphansRequest,
+    db: AsyncSession = Depends(get_db),
+    current_client: Client = Depends(get_current_client)
+):
+    """
+    Called by the Windows Agent to delete backup files on the server that no longer exist
+    in the client's local directory (orphans), enforcing replica mode.
+    """
+    res = await db.execute(select(BackupJob).where(BackupJob.id == job_id, BackupJob.client_id == current_client.id))
+    job = res.scalar_one_or_none()
+    if not job:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Job not found or not owned by this client"
+        )
+
+    if not job.sync_deletions:
+        return {"purged_count": 0, "message": "Replica mode (sync_deletions) is not enabled for this job."}
+
+    files_res = await db.execute(
+        select(BackupFile)
+        .where(
+            BackupFile.job_id == job_id,
+            BackupFile.client_id == current_client.id,
+            BackupFile.is_active == True
+        )
+    )
+    db_files = files_res.scalars().all()
+
+    client_paths = {p.strip().replace("\\", "/").lower() for p in payload.active_relative_paths}
+
+    purged_count = 0
+    total_freed_bytes = 0
+    from app.storage import storage_provider
+
+    for db_file in db_files:
+        normalized_db_path = db_file.client_relative_path.strip().replace("\\", "/").lower()
+        if normalized_db_path not in client_paths:
+            try:
+                await storage_provider.delete_backup_file(db_file.relative_path)
+                db_file.is_active = False
+                total_freed_bytes += db_file.file_size
+                purged_count += 1
+                
+                await log_event(
+                    db=db,
+                    event_type="FILE_PURGED",
+                    message=f"Purged orphan file '{db_file.filename}' from server storage (Replica Mode).",
+                    severity="WARNING",
+                    client_id=current_client.id,
+                    job_id=job.id
+                )
+            except Exception as e:
+                logger.error(f"Failed to purge orphan file {db_file.filename}: {e}")
+
+    if purged_count > 0:
+        current_client.storage_used_bytes = max(0, current_client.storage_used_bytes - total_freed_bytes)
+        await db.commit()
+
+    return {
+        "purged_count": purged_count,
+        "freed_bytes": total_freed_bytes,
+        "message": f"Successfully purged {purged_count} orphan files from server."
+    }

backend/app/api/upload.py

@@ -36,7 +36,8 @@ async def init_session(
         file_size=payload.file_size,
         sha256_full=payload.sha256,
         chunk_size=payload.chunk_size,
-        job_id=payload.job_id
+        job_id=payload.job_id,
+        client_relative_path=payload.client_relative_path
     )
 
     return {