Developers can add [tool.uv.sources] with editable paths to pyproject.toml
for local development without risk of committing them. The pre-commit hook
strips the section before commit and post-commit restores it. Also updates
install-hooks.sh to install both hooks and chain with bd, and bumps the
mock API size threshold from 850KB to 950KB to match codebase growth.

Gate the beforeConfigureGraph and afterConfigureGraph hooks on managed
state so non-managed ComfyUI installations fall through to native
missing resource warnings. Change default setup state from 'managed' to
'no_workspace' to handle the race condition where hooks fire before
fetchSetupStatus resolves.

EnvironmentSwitcher was calling getSwitchStatus() and listEnvironments()
which didn't exist on the service composable, causing runtime crashes.

- Add listEnvironments() to composable returning full API response
  ({environments, current, is_managed}) instead of just the array
- getEnvironments() now delegates to listEnvironments() for compat
- Fix getSwitchStatus() → getSwitchProgress() in polling loop
- Guard against null progress response to prevent crash on .state access

Complements the pre-commit hook approach with a proper git clean filter
so pyproject.toml no longer shows as modified during development.