* feat(embed): add hindisght-embed profiles
* ci: run pytest tests for hindsight-embed in CI
- Add pytest test run step to test-embed job
- This ensures profile tests (37 tests) are run in CI
- Smoke test still runs after pytest tests
* feat(embed): use 'default' profile name consistently
- Configure command now shows "Profile 'default' configured successfully!"
- Profile list shows "default" instead of empty string
- Profile show displays "default" consistently
- All output now uses "default" label for backward-compatible config
- Added port display for default profile in all commands
* fix(embed): replace requests with httpx in profile_manager
- Use httpx.Client() instead of requests.get() for daemon health check
- Update test mock to use httpx.Client instead of requests.get
- Fixes ModuleNotFoundError in CI (requests not in dependencies)
