fix: let all issues events through workflow gate on Forgejo

Forgejo does not populate github.event.action in the workflow if:
context for issues events (run 12061 was skipped despite action
being 'labeled'). Same pattern as pull_request_comment (M3).

Remove the action/body/title gating from the workflow condition
and let trigger.ts handle all validation (label, assignee, mention).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.forgejo/workflows/claude.yml

@@ -19,12 +19,10 @@ jobs:
       (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
       (github.event_name == 'pull_request_review_comment' || github.event_name == 'pull_request_comment') ||
       (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude')) ||
-      (github.event_name == 'issues' && (
-        github.event.action == 'labeled' ||
-        github.event.action == 'assigned' ||
-        contains(github.event.issue.body, '@claude') ||
-        contains(github.event.issue.title, '@claude')
-      ))
+      # Forgejo does not populate github.event.action in the workflow if: context for
+      # issues events (run 12061 was skipped despite action being 'labeled'). Let all
+      # issues events through — trigger.ts validates label/assignee/mention checks.
+      (github.event_name == 'issues')
     runs-on: grunt
     steps:
       - name: Checkout