chore: update multifile github actions file

Author: tianzhou

.github/workflows/pgschema-multifile-apply.yml

@@ -1,7 +1,8 @@
 name: pgschema Apply - Multi File
 
 on:
-  push:
+  pull_request:
+    types: [closed]
     branches:
       - main
     paths:
@@ -10,10 +11,12 @@ on:
 
 permissions:
   contents: read
+  pull-requests: write
 
 jobs:
   pgschema-apply-multi:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true
 
     env:
       PGPASSWORD: postgres
@@ -108,3 +111,79 @@ jobs:
           echo "❌ Failed to apply schema changes!"
           echo ""
           echo "Please check the logs above for details."
+
+      - name: Comment on PR with migration results
+        if: always()
+        uses: actions/github-script@v7
+        with:
+          script: |
+            // Get the apply output from the previous step
+            const applyOutput = `${{ steps.apply.outputs.output }}` || 'No output captured';
+
+            // Determine if migration was successful based on job outcome
+            const wasSuccessful = `${{ job.status }}` === 'success';
+
+            let commentBody;
+
+            if (wasSuccessful) {
+              commentBody = `## ✅ Schema Changes Applied Successfully!
+
+            <details>
+            <summary>📋 Applied Changes</summary>
+
+            \`\`\`
+            ${applyOutput}
+            \`\`\`
+
+            </details>
+
+            **Database:** testdb
+
+            ---
+            *This comment was automatically generated by the [pgschema](https://www.pgschema.com) Multi File Apply workflow.*`;
+            } else {
+              commentBody = `## ❌ Schema Migration Failed!
+
+            The multi-file schema migration failed after merging this PR. Please review the error details below:
+
+            <details>
+            <summary>🔍 Error Details</summary>
+
+            \`\`\`
+            ${applyOutput}
+            \`\`\`
+
+            </details>
+
+            **Database:** testdb
+
+            ---
+            *This comment was automatically generated by the [pgschema](https://www.pgschema.com) Multi File Apply workflow.*`;
+            }
+
+            // Try to find existing comment
+            const { data: comments } = await github.rest.issues.listComments({
+              ...context.repo,
+              issue_number: context.issue.number,
+            });
+
+            const botComment = comments.find(comment => 
+              comment.user.type === 'Bot' && 
+              comment.body.includes('pgschema Multi File Apply workflow')
+            );
+
+            if (botComment) {
+              // Update existing comment
+              await github.rest.issues.updateComment({
+                ...context.repo,
+                comment_id: botComment.id,
+                body: commentBody
+              });
+            } else {
+              // Create new comment
+              await github.rest.issues.createComment({
+                ...context.repo,
+                issue_number: context.issue.number,
+                body: commentBody
+              });
+            }

.github/workflows/pgschema-multifile-plan.yml

@@ -61,6 +61,7 @@ jobs:
           
           # Run pgschema plan
           PLAN_OUTPUT=$(pgschema plan \
+            --debug \
             --host localhost \
             --port 5432 \
             --db testdb \