feat(play): finalize store graphics and copy

docs/v3/play/assets/feature-graphic/manifest.json

@@ -1,9 +1,9 @@
 {
-  "schemaVersion": 1,
-  "generatedOn": "2026-08-24",
+  "schemaVersion": 2,
+  "generatedOn": "2026-08-29",
   "selection": {
-    "recommended": "A",
-    "status": "pending_user_selection_and_console_preview"
+    "recommended": "E",
+    "status": "selected_console_preview_verified"
   },
   "brandSource": "site/public/favicon.svg",
   "export": {
@@ -16,6 +16,18 @@
     "pngColorType": 2,
     "opaque": true
   },
+  "canonical": {
+    "id": "E",
+    "source": "candidate-e-generated-signal-stage-source.png",
+    "sourceBytes": 1224200,
+    "sourceSha256": "BFACF64CE206D794F307662797489E27286E7F7CE7DEF5F8748C4C5332C3323D",
+    "prompt": "candidate-e-generated-signal-stage.prompt.md",
+    "promptBytes": 2852,
+    "promptSha256": "AC6C1BEB6409E84764791ACCD919FE162FFAFD4759F3E49B9DA6F877C283BA1C",
+    "output": "candidate-e-generated-signal-stage.png",
+    "outputBytes": 441480,
+    "outputSha256": "A5D82B65B95027ACE184FA06A3BBDA3433995C70F064932B5733C3D3A99644D9"
+  },
   "candidates": [
     {
       "id": "A",