Make ingress async to avoid Cloudflare timeout

The LLM analysis step was taking too long and causing 524 errors.
Now returns immediately and processes in background.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/api.py

@@ -188,13 +188,21 @@ async def chat_suggestions(q: str = ""):
 # --- Ingress Endpoints ---
 
 
+async def process_ingress_background(url: str):
+    """Background task to process ingress."""
+    try:
+        await ingress_pipeline.process(url)
+    except Exception as e:
+        print(f"Ingress error for {url}: {e}")
+
+
 @app.post("/ingress", response_model=IngressResponse)
 async def ingress(request: IngressRequest, background_tasks: BackgroundTasks):
     """
     Process an external article URL through the ingress pipeline.
 
-    This scrapes the article, analyzes it for wiki relevance,
-    finds matching existing articles, and generates draft articles.
+    Returns immediately and processes in the background.
+    Check /review endpoint for results.
     """
     if not ingress_pipeline:
         raise HTTPException(
@@ -202,20 +210,18 @@ async def ingress(request: IngressRequest, background_tasks: BackgroundTasks):
             detail="Ingress pipeline not initialized. Run indexing first.",
         )
 
-    try:
-        result = await ingress_pipeline.process(str(request.url))
+    # Process in background to avoid Cloudflare timeout
+    background_tasks.add_task(process_ingress_background, str(request.url))
 
-        return IngressResponse(
-            status="success",
-            message="Article processed successfully",
-            scraped_title=result.scraped.title,
-            topics_found=len(result.analysis.get("main_topics", [])),
-            wiki_matches=len(result.wiki_matches),
-            drafts_generated=len(result.draft_articles),
-            queue_file=result.timestamp,
-        )
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=str(e))
+    return IngressResponse(
+        status="processing",
+        message="Article submitted for processing. Check the Review tab for results.",
+        scraped_title=None,
+        topics_found=0,
+        wiki_matches=0,
+        drafts_generated=0,
+        queue_file=None,
+    )
 
 
 # --- Review Queue Endpoints ---