Add live acceptance smoke validation

backend/app/main.py

@@ -9,6 +9,7 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import FileResponse, StreamingResponse
 
 from . import db
+from .acceptance import latest_acceptance_report, run_live_acceptance
 from .catalog import get_catalog
 from .config import settings
 from .coverage import get_coverage_report
@@ -69,6 +70,16 @@ def api_coverage() -> dict:
     return get_coverage_report()
 
 
+@app.get("/api/acceptance/latest")
+def api_acceptance_latest() -> dict:
+    return latest_acceptance_report()
+
+
+@app.post("/api/acceptance/smoke")
+def api_acceptance_smoke(base_url: str = "http://127.0.0.1:8010") -> dict:
+    return run_live_acceptance(base_url)
+
+
 @app.get("/api/datasets")
 def api_datasets() -> list[dict]:
     return list_uploaded_datasets()
@@ -163,7 +174,11 @@ def api_results() -> list[dict]:
 def api_artifact(artifact_path: str):
     candidate = Path(artifact_path)
     if not candidate.is_absolute():
-        candidate = settings.source_root / candidate
+        first_part = candidate.parts[0] if candidate.parts else ""
+        if first_part in {"var", "weights"}:
+            candidate = settings.project_root / candidate
+        else:
+            candidate = settings.source_root / candidate
     try:
         resolved = candidate.resolve()
         allowed = False