feat: persist imported DMARC reports

backend/app/api/api_v1/endpoints/imap.py

@@ -4,7 +4,9 @@ from typing import Any, Dict, Optional
 
 from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException
 from pydantic import BaseModel
+from sqlalchemy.orm import Session
 
+from app.core.database import SessionLocal, get_db
 from app.core.security import require_admin_auth
 from app.services.imap_client import IMAPClient
 
@@ -22,6 +24,20 @@ class IMAPTestRequest(BaseModel):
     ssl: bool = True
 
 
+def _fetch_imap_reports_background(days: int, delete_emails: bool) -> None:
+    """Fetch IMAP reports with a standalone DB session for background imports."""
+    db = SessionLocal()
+    try:
+        imap_client = IMAPClient(delete_emails=delete_emails, db=db)
+        imap_client.fetch_reports(days=days)
+        db.commit()
+    except Exception:
+        db.rollback()
+        raise
+    finally:
+        db.close()
+
+
 @router.post("/test-connection")
 async def test_imap_connection(
     request: IMAPTestRequest,
@@ -57,6 +73,7 @@ async def test_imap_connection(
 async def fetch_imap_reports(
     background_tasks: BackgroundTasks,
     _auth: dict = Depends(require_admin_auth),
+    db: Session = Depends(get_db),
     days: int = 7,
     delete_emails: bool = False,
 ) -> Dict[str, Any]:
@@ -69,11 +86,11 @@ async def fetch_imap_reports(
     if days < 1 or days > 365:
         raise HTTPException(status_code=400, detail="Days parameter must be between 1 and 365")
 
-    imap_client = IMAPClient(delete_emails=delete_emails)
+    imap_client = IMAPClient(delete_emails=delete_emails, db=db)
 
     # Run in background if it might take a while
     if days > 14:
-        background_tasks.add_task(imap_client.fetch_reports, days)
+        background_tasks.add_task(_fetch_imap_reports_background, days, delete_emails)
         return {
             "success": True,
             "message": f"Background task started to fetch {days} days of reports",
@@ -83,6 +100,7 @@ async def fetch_imap_reports(
     # Otherwise run immediately
     try:
         results = imap_client.fetch_reports(days=days)
+        db.commit()
 
         return {
             "success": results["success"],