Poster board step 2 test PR

packages/experiments-realm/poster-board/PosterBoard/demo-poster-board.json

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+{
+  "data": {
+    "type": "card",
+    "attributes": {
+      "cardInfo": {
+        "name": "Demo Poster Board"
+      },
+      "frameSettings": [
+        {
+          "cardIndex": 3,
+          "x": 460,
+          "y": 340
+        },
+        {
+          "cardIndex": 4,
+          "x": 680,
+          "y": 90
+        }
+      ]
+    },
+    "relationships": {
+      "cards.0": {
+        "links": {
+          "self": "../../4b6602-wine-cellar-card-definition/WineBottle/011f0239-9a66-405f-a874-32bb4146ee7b"
+        }
+      },
+      "cards.1": {
+        "links": {
+          "self": "../../d29736-tier-list/TierList/my-language-ranking"
+        }
+      },
+      "cards.2": {
+        "links": {
+          "self": "../../blog-app/games/Wordle/play"
+        }
+      },
+      "cards.3": {
+        "links": {
+          "self": "../../673fb6-blackjack-cardgame-definition/Blackjack/be0fd885-7672-4379-a001-ea8611da2ec2"
+        }
+      },
+      "cards.4": {
+        "links": {
+          "self": "../../4b6602-wine-cellar-card-definition/WineBottle/7bc1c7b6-f051-4a45-aaba-8f41b62eed0d"
+        }
+      }
+    },
+    "meta": {
+      "adoptsFrom": {
+        "module": "../poster-board",
+        "name": "PosterBoard"
+      }
+    }
+  }
+}

packages/experiments-realm/poster-board/README.md

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+# Poster Board
+
+A FigJam-style infinite-canvas board card: pan, wheel/pinch zoom at the
+cursor with momentum, and a zoom toolbar. `rig.gts` is the pure-TS camera
+engine; `poster-board.gts` is the `PosterBoard` card def that renders it.
+
+## Running the tests
+
+Tests live in `poster-board.test.gts` and run on the catalog live-test
+infrastructure (see `../tests/live/README.md` for the full details): the
+realm serves the test file, and the host's QUnit runner discovers and loads
+it at runtime.
+
+### 1. Start the servers
+
+From the monorepo project root:
+
+```bash
+mise run dev-all
+```
+
+This brings up the whole dev stack — host dev server (port 4200) plus the
+realm server stack (base + catalog realms, matrix, smtp) — in the right
+order.
+
+### 2a. Run in the browser (interactive)
+
+```
+https://localhost:4200/tests/index.html?liveTest=true&realmURL=https%3A%2F%2Flocalhost%3A4201%2Fcatalog%2F&filter=poster-board
+```
+
+`filter=` matches QUnit module names — `poster-board` selects the
+`Rendering | poster-board card` module. Drop it to run every live test in
+the catalog realm.
+
+### 2b. Run headless (CLI)
+
+```bash
+cd packages/host && pnpm build   # test page runs from ./dist
+REALM_URL="https://localhost:4201/catalog/" \
+  npx ember test --config-file testem-live.js --path ./dist --filter "poster-board"
+```
+
+Or run the full catalog suite the CI way: `REALM_URL="https://localhost:4201/catalog/" pnpm test:live`.
+
+### Caveats
+
+- After adding or moving a `.test.gts` file, the realm has to re-index before
+  the runner's `_mtimes` discovery sees it — restart `mise run dev-all` if a
+  new test doesn't show up.
+- The live-test CI job does **not** run on catalog-only PRs (its path filter
+  excludes `packages/catalog/contents/**`) — run the tests locally before
+  merging and say so in the PR.