Add workflow to auto-dismiss owner from Copilot PRs and enable auto-merge

.github/workflows/auto-dismiss-reviewer.yml

@@ -0,0 +1,66 @@
+name: Auto-dismiss owner from Copilot PRs
+
+on:
+  pull_request:
+    types: [opened, review_requested]
+
+jobs:
+  dismiss-reviewer:
+    runs-on: ubuntu-latest
+    if: github.actor == 'copilot-swe-agent[bot]'
+    permissions:
+      pull-requests: write
+      contents: read
+    steps:
+      - name: Remove owner and request Copilot review
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const owner = context.repo.owner;
+            const repo = context.repo.repo;
+            const pull_number = context.payload.pull_request.number;
+
+            // Remove GhostwheeI as reviewer
+            try {
+              await github.rest.pulls.removeRequestedReviewers({
+                owner,
+                repo,
+                pull_number,
+                reviewers: ['GhostwheeI']
+              });
+              console.log(`Removed GhostwheeI from reviewers on PR #${pull_number}`);
+            } catch (e) {
+              console.log(`Could not remove reviewer: ${e.message}`);
+            }
+
+            // Request Copilot code review
+            await github.rest.issues.createComment({
+              owner,
+              repo,
+              issue_number: pull_number,
+              body: '@copilot review'
+            });
+            console.log(`Requested Copilot review on PR #${pull_number}`);
+
+            // Enable auto-merge (squash)
+            try {
+              await github.graphql(`
+                mutation($pullRequestId: ID!) {
+                  enablePullRequestAutoMerge(input: {
+                    pullRequestId: $pullRequestId,
+                    mergeMethod: SQUASH
+                  }) {
+                    pullRequest {
+                      autoMergeRequest {
+                        enabledAt
+                      }
+                    }
+                  }
+                }
+              `, {
+                pullRequestId: context.payload.pull_request.node_id
+              });
+              console.log(`Enabled auto-merge on PR #${pull_number}`);
+            } catch (e) {
+              console.log(`Could not enable auto-merge: ${e.message}`);
+            }