Add missing GitHub App manifest file

[Copilot]

The deploy-autopr-engine.yml workflow failed with FileNotFoundError: '.github/app-manifest.yml'. The manifest file was referenced in workflow validation and documentation but never committed to the repository.

Changes

• Added .github/app-manifest.yml with standard GitHub App configuration
  • Permissions: actions, contents, metadata, secrets, workflows
  • Events: installation, workflow_run, push, pull_request
  • Placeholder webhook/callback URLs with inline documentation for customization

The workflow validation step now passes:

- name: Validate app-manifest.yml
  run: |
    echo "Validating GitHub App manifest..."
    python3 -c "import yaml; yaml.safe_load(open('.github/app-manifest.yml'))"
    echo "✅ app-manifest.yml is valid YAML"

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• invalid
  • Triggering command: /home/REDACTED/work/codeflow-engine/codeflow-engine/.venv/bin/pytest /home/REDACTED/work/codeflow-engine/codeflow-engine/.venv/bin/pytest (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

1s
Run echo "Validating GitHub App manifest..."
Validating GitHub App manifest...
Traceback (most recent call last):
File "", line 1, in
FileNotFoundError: [Errno 2] No such file or directory: '.github/app-manifest.yml'
Error: Process completed with exit code 1.

Fix and make sure reverything builds and cicd success

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