refactor: rinomina step-8 → ingestion

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

retrieve.py

@@ -159,7 +159,7 @@ def _build_epilog() -> str:
             if names:
                 lines += ["", f"Collection disponibili: {', '.join(names)}"]
             else:
-                lines += ["", "Nessuna collection trovata — eseguire prima: python step-8/ingest.py"]
+                lines += ["", "Nessuna collection trovata — eseguire prima: python ingestion/ingest.py"]
         except Exception:
             pass
     return "\n".join(lines)
@@ -196,14 +196,14 @@ def main() -> int:
     print()
 
     if not CHROMA_DIR.exists():
-        print("❌ chroma_db/ non trovata — esegui prima step-8", file=sys.stderr)
+        print("❌ chroma_db/ non trovata — esegui prima ingestion", file=sys.stderr)
         return 1
 
     client = chromadb.PersistentClient(path=str(CHROMA_DIR))
     collections = [c.name for c in client.list_collections()]
     if args.stem not in collections:
         print(f"❌ Collection '{args.stem}' non trovata in chroma_db/", file=sys.stderr)
-        print(f"   → python step-8/ingest.py --stem {args.stem}", file=sys.stderr)
+        print(f"   → python ingestion/ingest.py --stem {args.stem}", file=sys.stderr)
         return 1
 
     collection = client.get_collection(args.stem)