Add scoped Agent-mode pipeline as experimental Classic fork.

Wire specialist waves, Brain consolidation, and Classic-compatible reports so Agent mode can run end-to-end via OpenRouter without changing the default Classic path.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/main.py

@@ -18,7 +18,7 @@ from fastapi.responses import HTMLResponse, JSONResponse, Response
 from fastapi.staticfiles import StaticFiles
 
 from backend import config
-from backend.jobs import create_job, get_job
+from backend.jobs import PIPELINE_MODES, create_job, get_job
 from backend.pipeline.pdf_processor import render_page_jpeg
 
 app = FastAPI(title=config.APP_TITLE, version=config.APP_VERSION)
@@ -42,6 +42,7 @@ async def check(
     occupancy: Optional[str] = Form(None),
     work_type: Optional[str] = Form(None),
     text_local: bool = Form(False),
+    pipeline_mode: str = Form("classic"),
 ):
     """
     Accept a PDF, start a background conflict check, and return a job_id
@@ -53,6 +54,12 @@ async def check(
     """
     if not file.filename.lower().endswith(".pdf"):
         raise HTTPException(status_code=400, detail="Please upload a PDF.")
+    pipeline_mode = pipeline_mode.strip().lower()
+    if pipeline_mode not in PIPELINE_MODES:
+        raise HTTPException(
+            status_code=400,
+            detail=f"pipeline_mode must be one of: {', '.join(sorted(PIPELINE_MODES))}",
+        )
 
     os.makedirs(config.UPLOAD_DIR, exist_ok=True)
     suffix = "_" + os.path.basename(file.filename)
@@ -70,8 +77,14 @@ async def check(
         if v and v.strip()
     }
     job_id = create_job(tmp_path, source_filename=file.filename, email=email,
-                        project_input=project_input, text_local=text_local)
-    return JSONResponse({"job_id": job_id, "status": "queued", "email": email})
+                        project_input=project_input, text_local=text_local,
+                        pipeline_mode=pipeline_mode)
+    return JSONResponse({
+        "job_id": job_id,
+        "status": "queued",
+        "email": email,
+        "pipeline_mode": pipeline_mode,
+    })
 
 
 @app.get("/jobs/{job_id}")