feat(FN-2981): add droid-cli auth and status routes with experimental agent

This merge lands v0.12.0 with two major features: a droid-cli provider integration adding auth routes, status endpoints, and a settings toggle hook for controlling CLI-based authentication, plus a new experimental agent onboarding modal with a create-agent form. The release also stabilizes engine st

Fusion-Task-Id: FN-2981

packages/core/src/db.ts

@@ -2115,6 +2115,17 @@ export class Database {
       });
     }
 
+    // Persist the pi/Claude CLI session file path per chat so quick-chat
+    // turns reuse the same on-disk session instead of starting fresh each
+    // user message.
+    if (version < 56) {
+      this.applyMigration(56, () => {
+        if (this.hasTable("chat_sessions")) {
+          this.addColumnIfMissing("chat_sessions", "cliSessionFile", "TEXT");
+        }
+      });
+    }
+
   }
 
   /**