Modify Claude workflow for pull request triggers

Update Claude workflow to trigger on pull requests and adjust permissions.

Author: radio24

.github/workflows/claude.yml

@@ -1,6 +1,9 @@
 name: Claude Code
 
 on:
+  pull_request:
+    branches: [ openvpn-update ]
+    types: [opened, synchronize, reopened]
   issue_comment:
     types: [created]
   pull_request_review_comment:
@@ -19,8 +22,8 @@ jobs:
       (github.event_name == 'issues' && (contains(github.event.issue.body, '@claude') || contains(github.event.issue.title, '@claude')))
     runs-on: ubuntu-latest
     permissions:
-      contents: read
-      pull-requests: read
+      contents: write
+      pull-requests: write
       issues: read
       id-token: write
       actions: read # Required for Claude to read CI results on PRs