fix(mcp): list PromQL catalog names from the tags table, without a time window - #3669

On December 2, 2026, GitHub will restrict `pull_request_target` on public repositories by default. To continue allowing the event trigger, configure an Actions policy. Learn more: https://gh.io/securely-using-pull_request_target#default-policy-for-pull_request_target

15 Bash rule(s) in claude_args are not on the deny list and stay allowed. Check that they cannot run code from the pull request.

The author of pull request #3669 is not confirmed to have write access, so commands that run code from the checkout are denied. Set restrict_untrusted_prs to "false" to turn this off.

⚠️ SECURITY WARNING: Bypassing write permission check for bcanvural due to allowed_non_write_users='*'. This should only be used for workflows with very limited permissions.