feat: complete M7 cutover preparation

package.json

@@ -17,6 +17,8 @@
     "server-node:smoke": "npx tsx scripts/smoke-server-node.ts",
     "server-node:smoke:proxy": "npx tsx scripts/smoke-same-origin-stack.ts",
     "server-node:check:deploy": "npm run check:encoding && npm run server-node:test && npm run server-node:smoke && npm run server-node:build && npm run build && npm run server-node:smoke:proxy",
+    "server-rs:m7:preflight": "powershell -ExecutionPolicy Bypass -File server-rs/scripts/m7-preflight.ps1",
+    "m7:api-compare": "node scripts/run-tsx.cjs scripts/m7-api-compare.ts",
     "build": "node scripts/build-gate.mjs",
     "build:raw": "node scripts/vite-cli.mjs build",
     "preview": "node scripts/vite-cli.mjs preview",