Add end-to-end integration tests that exercise the full agent turn
cycle through the public API using mock providers and tools:
- Simple text response (no tools)
- Single tool call → tool execution → final response
- Multi-step tool chain
- XML dispatcher path
- Multi-turn conversation coherence
- Unknown tool recovery
- Parallel tool dispatch
Add CI workflow (.github/workflows/e2e.yml) that runs these tests
on push to main and on PRs.
Ref: https://github.com/zeroclaw-labs/zeroclaw/issues/618 (item 6)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
