Add corpus and update vid library with new file

backend/libraries/vid/library.json

@@ -3,6 +3,20 @@
   "name": "vid",
   "slug": "vid",
   "created_at": "2026-03-19T22:19:06Z",
-  "files": [],
-  "pipeline": {}
+  "files": [
+    {
+      "sha256": "bd0f618ae2c977bda2ea78bfa45dfae8a5e93b77e1fbd5d1bde44691a1ec1bb0",
+      "path": "/Users/giers/Movies/3 Meter Processor Unit shorts.mp4",
+      "rel": "bd0f618ae2c977bda2ea78bfa45dfae8a5e93b77e1fbd5d1bde44691a1ec1bb0--3_Meter_Processor_Unit_shorts.mp4",
+      "name": "3 Meter Processor Unit shorts.mp4",
+      "size": 4528678,
+      "added_at": "2026-03-19T22:19:17Z",
+      "sync_status": "pending",
+      "enrich_enabled": false
+    }
+  ],
+  "pipeline": {
+    "pending_prepare_signature": "0f0b619a1c42a4b21f55ba2f089239a5f9cc36266e4823cca0ddd6701d710cfe",
+    "pending_prepare_updated_at": "2026-03-19T22:19:17Z"
+  }
 }

backend/libraries/vid/stage/bd0f618ae2c977bda2ea78bfa45dfae8a5e93b77e1fbd5d1bde44691a1ec1bb0--3_Meter_Processor_Unit_shorts.mp4

@@ -0,0 +1 @@
+/Users/giers/Movies/3 Meter Processor Unit shorts.mp4