feat(queue): stage queue migration package

packages/queue/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@mosaic/queue",
+  "version": "0.1.0",
+  "description": "Valkey-backed task queue exposed via CLI and MCP",
+  "license": "MIT",
+  "type": "module",
+  "main": "dist/src/index.js",
+  "types": "dist/src/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/src/index.d.ts",
+      "import": "./dist/src/index.js"
+    }
+  },
+  "bin": {
+    "mosaic-queue": "dist/bin/mosaic-queue.js",
+    "mosaic-queue-mcp": "dist/bin/mosaic-queue-mcp.js"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "lint": "eslint \"src/**/*.ts\" \"tests/**/*.ts\" \"bin/**/*.ts\" \"vitest.config.ts\"",
+    "build": "tsc -p tsconfig.build.json",
+    "test": "vitest run",
+    "prepublishOnly": "pnpm lint && pnpm test && pnpm build"
+  },
+  "engines": {
+    "node": ">=20.0.0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "@modelcontextprotocol/sdk": "^1.27.1",
+    "commander": "^14.0.3",
+    "ioredis": "^5.10.0",
+    "zod": "^4.3.6"
+  }
+}