Bind the metered owner route to worker leases and sandbox lifecycle

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a07ff8-19d0-7820-b4d0-1353833cb7fc

deploy/runtime-contract-lock.json

@@ -7,7 +7,7 @@
   },
   "dependencies": [
     {
-      "commit": "dc77f434a8b279436efa64e279af58372d275d8a",
+      "commit": "718e6730e405ecbf42da2cd4931f4de3ecbe2bae",
       "distribution": "llm-connect",
       "source": "../llm-connect",
       "version": "0.1.0"
@@ -19,7 +19,7 @@
       "version": "0.1.0"
     },
     {
-      "commit": "3e49a98a0e2c4a64539a5ccd674be8cd67ac9845",
+      "commit": "bfe0e4c4c86003892796ba0fb990ae21d72278e1",
       "distribution": "sandboxer",
       "source": "../sand-boxer",
       "version": "0.0.0"