Extension backrooms (#2348)

* new extension backrooms-canvas

* new extension backrooms-canvas

* Apply suggestions from code review

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* update according to code review

update according to code review

* Apply suggestions from code review

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* apply code review, change backviews to backrooms

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

extensions/backrooms-canvas/.github/plugin/plugin.json

@@ -0,0 +1,19 @@
+{
+  "name": "backrooms-canvas",
+  "description": "Wander an endless first-person backrooms in a Copilot canvas while agents work; their status ghost-writes on the walls.",
+  "version": "1.0.0",
+  "author": {
+    "name": "John Haugabook",
+    "url": "https://github.com/jhauga"
+  },
+  "keywords": [
+    "backrooms",
+    "copilot-canvas",
+    "interactive-canvas",
+    "first-person",
+    "procedural-generation",
+    "session-breaks"
+  ],
+  "logo": "assets/preview.png",
+  "extensions": "."
+}