feat: setup dataset enrichment app codebase and scripts

backend/api/jobs.py

@@ -0,0 +1,29 @@
+"""Job routes (REQ-070, REQ-071)."""
+
+from typing import Optional
+
+from fastapi import APIRouter, HTTPException
+
+from backend import jobs as job_store
+
+router = APIRouter(prefix="/api/jobs", tags=["jobs"])
+
+
+@router.get("")
+def list_jobs(project_id: Optional[int] = None, limit: int = 50) -> dict:
+    return {"jobs": [job.to_dict() for job in job_store.listing(project_id, limit)]}
+
+
+@router.get("/{job_id}")
+def get_job(job_id: int) -> dict:
+    job = job_store.get(job_id)
+    if job is None:
+        raise HTTPException(404, "No such job")
+    return job.to_dict()
+
+
+@router.post("/{job_id}/cancel")
+def cancel_job(job_id: int) -> dict:
+    if not job_store.cancel(job_id):
+        raise HTTPException(400, "Job is not cancellable")
+    return {"ok": True}