fix(service): supervise canonical Mission Core lifecycle

tests/test_local_service_launchd.py

@@ -0,0 +1,46 @@
+from __future__ import annotations
+
+import plistlib
+from pathlib import Path
+
+from k1link.local_service_launchd import plan_mission_core_launch_agent
+
+
+def test_launch_agent_plan_disables_sync_and_enables_watchdog(tmp_path: Path) -> None:
+    repository = tmp_path / "repo"
+    repository.mkdir()
+    uv_entrypoint = tmp_path / "uv"
+    uv_entrypoint.write_text("#!/bin/sh\n")
+    uv_entrypoint.chmod(0o700)
+    agent = tmp_path / "agent.plist"
+    agent.write_bytes(
+        plistlib.dumps(
+            {
+                "Label": "com.nodedc.mission-core.local",
+                "ProgramArguments": [str(uv_entrypoint), "run", "k1link", "serve"],
+                "WorkingDirectory": str(repository),
+                "EnvironmentVariables": {"PATH": "/usr/bin:/bin"},
+            }
+        )
+    )
+    agent.chmod(0o600)
+
+    plan = plan_mission_core_launch_agent(
+        repository_root=repository,
+        agent_path=agent,
+    )
+    desired = plistlib.loads(plan.desired_payload)
+
+    assert desired["ProgramArguments"] == [
+        str(uv_entrypoint),
+        "run",
+        "--no-sync",
+        "k1link",
+        "serve",
+    ]
+    assert desired["EnvironmentVariables"]["MISSIONCORE_SERVICE_WATCHDOG"] == "1"
+    assert desired["KeepAlive"] is True
+    assert desired["RunAtLoad"] is True
+    assert desired["AbandonProcessGroup"] is False
+    assert desired["ExitTimeOut"] == 20
+    assert plan.current_sha256 != plan.desired_sha256