fix: Inline script logic into master workflows for reusable workflow support

The master workflows were calling ./scripts/*.sh files which don't exist
when the workflow runs from a caller in another repository. This inlines
all the script logic directly into the workflow YAML files so they are
self-contained.

Changes:
- copilot-coder-master.yml: Inline prepare-commit.sh, push-branch.sh,
  and post-workflow-comment.sh logic
- copilot-reviewer-master.yml: Inline get-pr-diff.sh, download-pr-files.sh,
  analyze-with-copilot.sh, and post-pr-comment.sh logic

Author: benleane83

.github/workflows/copilot-coder-master.yml

@@ -207,15 +207,81 @@ jobs:
 
       - name: 💾 Commit Changes
         run: |
-          ./scripts/prepare-commit.sh "${ISSUE_NUMBER}" "${ISSUE_TITLE}" "${ISSUE_CREATOR}"
+          echo "📝 Preparing commit..."
+          
+          # Co-author info from issue creator
+          CREATOR_NAME="${ISSUE_CREATOR}"
+          CREATOR_EMAIL="${ISSUE_CREATOR}@users.noreply.github.com"
+          echo "👤 Co-author: ${CREATOR_NAME} <${CREATOR_EMAIL}>"
+          
+          # Add all files except metadata files
+          git add .
+          
+          # Exclude metadata files from commit
+          for file in copilot-summary.md commit-message.md .final-commit-msg.txt .github/copilot-instructions.md; do
+            if git ls-files --cached "$file" > /dev/null 2>&1; then
+              git reset HEAD "$file" 2>/dev/null || true
+            fi
+          done
+          
+          # Check if there are any staged changes
+          if ! git diff --cached --quiet; then
+            echo "✅ Changes staged for commit"
+          else
+            echo "⚠️  No changes staged for commit"
+          fi
+          
+          # Prepare final commit message with co-author
+          if [ -f "commit-message.md" ]; then
+            echo "✅ Using Copilot-generated commit message"
+            {
+              cat commit-message.md
+              echo ""
+              echo ""
+              echo "Co-authored-by: ${CREATOR_NAME} <${CREATOR_EMAIL}>"
+            } > .final-commit-msg.txt
+          else
+            echo "⚠️  commit-message.md not found, using default message"
+            {
+              echo "feat: Implement issue ${ISSUE_NUMBER}"
+              echo ""
+              echo "${ISSUE_TITLE}"
+              echo ""
+              echo "Changes implemented by GitHub Copilot CLI"
+              echo ""
+              echo "Co-authored-by: ${CREATOR_NAME} <${CREATOR_EMAIL}>"
+            } > .final-commit-msg.txt
+          fi
+          
+          # Create commit if there are staged changes
+          if git diff --cached --quiet; then
+            echo "⚠️  No staged changes to commit, skipping git commit"
+          else
+            git commit -F .final-commit-msg.txt
+            echo "✅ Changes committed successfully"
+          fi
+          
+          # Clean up
+          rm -f .final-commit-msg.txt
         env:
           ISSUE_NUMBER: ${{ github.event.issue.number }}
           ISSUE_TITLE: ${{ github.event.issue.title }}
           ISSUE_CREATOR: ${{ github.event.issue.user.login }}
 
       - name: 🚀 Push Branch
         run: |
-          ./scripts/push-branch.sh "${{ env.BRANCH_NAME }}"
+          echo "🚀 Pushing branch to remote..."
+          
+          # Configure git remote with GH_TOKEN for authentication
+          REMOTE_URL=$(git remote get-url origin)
+          if [[ "$REMOTE_URL" == https://* ]]; then
+            REPO_PATH=$(echo "$REMOTE_URL" | sed 's|https://[^/]*/||')
+            GITHUB_HOST=$(echo "$REMOTE_URL" | sed 's|https://||' | sed 's|/.*||')
+            git remote set-url origin "https://x-access-token:${GH_TOKEN}@${GITHUB_HOST}/${REPO_PATH}"
+          fi
+          
+          git push -u origin "${{ env.BRANCH_NAME }}"
+          echo "✅ Branch pushed successfully"
         env:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}
 
@@ -263,7 +329,29 @@ jobs:
 
       - name: 💬 Add Completion Comment to Issue
         run: |
-          ./scripts/post-workflow-comment.sh "${ISSUE_NUMBER}" "${PR_URL}"
+          echo "💬 Adding completion comment to issue #${ISSUE_NUMBER}..."
+          
+          COMMENT="## 🎉 Implementation Complete!
+
+          The GitHub Copilot CLI has successfully implemented the changes for this issue.
+
+          ### 📬 Pull Request
+          A Pull Request has been created with the implementation:
+          ${PR_URL}
+
+          ### 👀 Next Steps
+          1. Review the Pull Request
+          2. Test the implementation
+          3. Approve and merge if everything looks good
+
+          ### 📦 Logs
+          Workflow logs and Copilot execution logs are available in the workflow run artifacts.
+
+          ---
+          *This comment was automatically generated by the GitHub Copilot Coder workflow.*"
+          
+          gh issue comment "${ISSUE_NUMBER}" --body "${COMMENT}"
+          echo "✅ Comment added successfully"
         env:
           GH_TOKEN: ${{ secrets.GH_TOKEN }}
           ISSUE_NUMBER: ${{ github.event.issue.number }}