feat(mcp): add verified ingest job phases

Expose authoritative ingest phases and supervisor-backed process liveness without semantic activity inference. Require deterministic registry, manifest, archive, file-index, and declared-output verification before an agent-successful job can finish succeeded.\n\nPreserve legacy state values, derive defaults for older job records, keep verification outside the manager lock, and retain partial outputs on verification failure.\n\nValidated with the full unittest suite (205 tests).

tests/test_mcp_server_remote.py

@@ -1055,6 +1055,16 @@ class RemoteMcpServerTests(unittest.TestCase):
         self.assertEqual(capabilities["ingest"]["preferred_text_tool"], "ingest_text_note")
         self.assertTrue(capabilities["ingest"]["supports_bundle_upload"])
         self.assertTrue(capabilities["ingest"]["supports_body_text"])
+        self.assertEqual(
+            capabilities["ingest"]["authoritative_job_phases"],
+            ["queued", "preflight", "agent_running", "verifying", "complete"],
+        )
+        self.assertEqual(
+            capabilities["ingest"]["process_alive_source"],
+            "process_supervisor",
+        )
+        self.assertTrue(capabilities["ingest"]["supports_post_run_verification"])
+        self.assertFalse(capabilities["ingest"]["semantic_activity_inference"])
         self.assertIn("body_text", capabilities["ingest"]["multipart_optional_fields"])
         self.assertIn("source_type", capabilities["ingest"]["multipart_optional_fields"])
         self.assertIn("validate_upload", capabilities["ingest"]["tools"])