feat: separated efficient agent mode (lite mode) for small language models

src/core/config-upgrader/KGConfigUpgrader.ts

@@ -4,6 +4,7 @@ import { upgradeConfigToV1 } from './upgradeConfigToV1';
 import { upgradeConfigToV2 } from './upgradeConfigToV2';
 import { upgradeConfigToV3 } from './upgradeConfigToV3';
 import { upgradeConfigToV4 } from './upgradeConfigToV4';
+import { upgradeConfigToV5 } from './upgradeConfigToV5';
 
 /**
  * KGConfigUpgrader — Orchestrates app-level migrations (e.g., storage backend changes).
@@ -48,6 +49,10 @@ export class KGConfigUpgrader {
           await upgradeConfigToV4();
           break;
         }
+        case 5: {
+          await upgradeConfigToV5();
+          break;
+        }
         default: {
           throw new Error(`No config upgrader found for version ${nextVersion}`);
         }