Project tooling: add Unity Recorder, drop stale PlayMode.meta

Add com.unity.recorder 5.1.6 (manifest + lock, pulls openimageio binding). Remove the now-orphaned Assets/Settings/PlayMode.meta folder asset.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Settings/PlayMode.meta

@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 356e0b9de894a0349a1537ff80a01207
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Packages/manifest.json

@@ -9,6 +9,7 @@
     "com.unity.multiplayer.tools": "2.2.9",
     "com.unity.netcode.gameobjects": "2.13.0",
     "com.unity.probuilder": "6.0.9",
+    "com.unity.recorder": "5.1.6",
     "com.unity.render-pipelines.universal": "17.3.0",
     "com.unity.services.multiplayer": "2.2.4",
     "com.unity.timeline": "1.8.12",

Packages/packages-lock.json

@@ -17,6 +17,15 @@
       },
       "hash": "11836003a5e2ffcb7715ecec7e1fbb9d9cdb5bb8"
     },
+    "com.unity.bindings.openimageio": {
+      "version": "1.0.2",
+      "depth": 1,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.collections": "1.2.4"
+      },
+      "url": "https://packages.unity.com"
+    },
     "com.unity.burst": {
       "version": "1.8.28",
       "depth": 1,
@@ -156,6 +165,17 @@
       "dependencies": {},
       "url": "https://packages.unity.com"
     },
+    "com.unity.recorder": {
+      "version": "5.1.6",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.timeline": "1.8.7",
+        "com.unity.collections": "1.2.4",
+        "com.unity.bindings.openimageio": "1.0.2"
+      },
+      "url": "https://packages.unity.com"
+    },
     "com.unity.render-pipelines.core": {
       "version": "17.3.0",
       "depth": 1,