feat: add QR login and browser-backed web tools

app/commands/builtins.py

@@ -416,6 +416,7 @@ async def echo(ctx: "CommandContext") -> None:
     category="shared",
 ).shared()
 async def ai(ctx: "CommandContext") -> None:
+    failed = False
     try:
         invocation = parse_agent_invocation(ctx.args, ctx.manager.config.ai)
         turn = await run_agent_turn(
@@ -431,6 +432,9 @@ async def ai(ctx: "CommandContext") -> None:
             ctx.account.ai_sessions.register_response(turn.handle, sent)
     except Exception:
         log.exception("AI command failed for message %s", getattr(ctx.message, "id", None))
+        failed = True
+
+    if failed:
         await _dislike(ctx.message)