Revert CI: Claude review, trigger on git push [skip ci] (cppcheck-opensource#8927)

This reverts commit bee8b7b.

Author: danmar

.github/workflows/claude-review.yml

@@ -1,25 +1,29 @@
 # Automated code review of pull requests using Claude
 #
-# A member/owner/collaborator requests a review by writing a PR comment
-# containing "@claude review".
+# - PRs opened by members/owners/collaborators are reviewed automatically.
+# - For other PRs a member/owner/collaborator can request a review by writing
+#   a PR comment containing "@claude review".
 #
-# pull_request_target is not used because the Claude GitHub App token exchange
-# rejects OIDC tokens from that event (401 "Invalid OIDC token").
-#
-# issue_comment runs the workflow file from the default branch with access to
-# secrets. The PR code is never checked out or executed.
+# pull_request_target and issue_comment run the workflow file from the base
+# branch with access to secrets. The PR code is never checked out or executed.
 name: claude-review
 
 on:
+  pull_request_target:
+    types: [opened, synchronize, ready_for_review, reopened]
   issue_comment:
     types: [created]
 
 jobs:
   review:
     if: |
-      github.event.issue.pull_request &&
-      contains(github.event.comment.body, '@claude review') &&
-      contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association)
+      (github.event_name == 'pull_request_target' &&
+       github.event.pull_request.draft == false &&
+       contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.pull_request.author_association)) ||
+      (github.event_name == 'issue_comment' &&
+       github.event.issue.pull_request &&
+       contains(github.event.comment.body, '@claude review') &&
+       contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association))
 
     runs-on: ubuntu-24.04
 
@@ -40,7 +44,7 @@ jobs:
         anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
         prompt: |
           REPO: ${{ github.repository }}
-          PR NUMBER: ${{ github.event.issue.number }}
+          PR NUMBER: ${{ github.event.pull_request.number || github.event.issue.number }}
 
           Review this pull request. Focus on correctness bugs, potential
           false positives/false negatives in checkers, performance problems