fix: auto compaction threshold default 200k tokens

src/reference_data/subsystems/migrations.json

@@ -0,0 +1,18 @@
+{
+  "archive_name": "migrations",
+  "package_name": "migrations",
+  "module_count": 11,
+  "sample_files": [
+    "migrations/migrateAutoUpdatesToSettings.ts",
+    "migrations/migrateBypassPermissionsAcceptedToSettings.ts",
+    "migrations/migrateEnableAllProjectMcpServersToSettings.ts",
+    "migrations/migrateFennecToOpus.ts",
+    "migrations/migrateLegacyOpusToCurrent.ts",
+    "migrations/migrateOpusToOpus1m.ts",
+    "migrations/migrateReplBridgeEnabledToRemoteControlAtStartup.ts",
+    "migrations/migrateSonnet1mToSonnet45.ts",
+    "migrations/migrateSonnet45ToSonnet46.ts",
+    "migrations/resetAutoModeOptInForDefaultOffer.ts",
+    "migrations/resetProToOpusDefault.ts"
+  ]
+}