VLC v1 finished, improve on instructions, improve on infra

evaluation_examples/examples/vlc/fba2c100-79e8-42df-ae74-b592418d54f4.json

@@ -1,12 +1,48 @@
 {
   "id": "fba2c100-79e8-42df-ae74-b592418d54f4",
   "snapshot": "base_setup",
-  "instruction": "Screenshot the current frame of the video",
+  "instruction": "Snap a photo of the current video scene, save it as 'interstellar.png', and put it on the Desktop, please.",
   "source": "https://www.youtube.com/watch?v=XHprwDJ0-fU&t=436s",
-  "config": [],
+  "config": [
+    {
+      "type": "download",
+      "parameters": {
+        "files": [
+          {
+            "url": "https://drive.usercontent.google.com/download?id=1u7CFVr5bWti7OnhvyjtSdQolzy0lYicm&export=download&authuser=0&confirm=t&uuid=18498a7c-9b52-4c00-a2cc-2e8b521c4d9c&at=APZUnTX0R_TRccU_UmtJWXZ6On3x:1704890439561",
+            "path": "Desktop/Interstellar Movie - Official Trailer.mp4"
+          }
+        ]
+      }
+    },
+    {
+      "type": "launch",
+      "parameters": {
+        "command": [
+          "vlc",
+          "--start-time=120.5",
+          "--stop-time=121",
+          "--play-and-pause",
+          "Desktop/Interstellar Movie - Official Trailer.mp4"
+        ]
+      }
+    }
+  ],
   "trajectory": "trajectories/",
   "related_apps": [
     "vlc"
   ],
-  "evaluator": "evaluation_dir"
+  "evaluator": {
+    "func": "compare_images",
+    "expected": {
+      "type": "cloud_file",
+      "path": "https://drive.usercontent.google.com/download?id=1shU1TQ3ao9QWfhmC63vbD10YFbhv7PYv&export=download&authuser=0&confirm=t&uuid=6a22a47a-6d35-4996-b02e-b24b33a1c449&at=APZUnTVlvDKpxW7QKmBBmdNq2jRw:1704891215314",
+      "dest": "interstellar_gold.png"
+    },
+    "result": {
+      "type": "vm_file",
+      "path": "Desktop/interstellar.png",
+      "dest": "interstellar.png"
+    }
+  }
 }