Add relay health preflight job and scheduler deferral handling

package.json

@@ -16,6 +16,7 @@
     "src/dashboard.mjs",
     "src/roster.mjs",
     "src/torch-config.mjs",
+    "src/relay-health.mjs",
     "src/prompts/",
     "src/docs/",
     "scripts/check-file-size.mjs",
@@ -32,6 +33,7 @@
     "lock:check:weekly": "node bin/torch-lock.mjs check --cadence weekly",
     "lock:list": "node bin/torch-lock.mjs list",
     "lock:lock": "node bin/torch-lock.mjs lock",
+    "lock:health": "node bin/torch-lock.mjs health",
     "dashboard:serve": "node bin/torch-lock.mjs dashboard",
     "build": "node build.mjs",
     "lint": "eslint .",