feat(reader): STATUS.md parser + TS project scaffold [skip-tdd: visual for configs]

- vitest+TS scaffold (package.json/tsconfig/vitest.config = config artifacts)
- src/parser.ts: parses STATUS.md blocks → StatusBlock[]
- tests/parser.test.ts: 6 cases (single, multi, blocker, null-blocker, empty, unknown emoji)
- fix emoji contract: align with using-tasks reality (⚪ open / 🔴 in_progress / 🟡 paused / 🔵 blocked / 🟢 done); reader-task acceptance + design doc updated

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -0,0 +1,20 @@
+{
+  "name": "board-viewer",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "description": "Read-only HTML kanban viewer over Gitea API",
+  "scripts": {
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "typecheck": "tsc --noEmit"
+  },
+  "engines": {
+    "node": ">=22"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.0",
+    "typescript": "^5.7.0",
+    "vitest": "^2.1.0"
+  }
+}