{
  "note": "R1–R4 存量违规基线（ratchet）：只许减、不许增；新增违规会让 check:layering 失败",
  "edges": [
    "src/fs/local-user-fs.ts → src/web/middleware/fs-guard.ts",
    "src/fs/remote-user-fs.ts → src/web/middleware/fs-guard.ts",
    "src/fs/workspace.ts → src/web/middleware/fs-guard.ts",
    "src/supervisor/proxy.ts → src/web/auth.ts",
    "src/supervisor/proxy.ts → src/web/middleware/authn.ts"
  ]
}