* feat(live): make live sessions recoverable
tired of live mode losing the plot when the browser moved faster than the agent.
now the state is boring: journal it, resume it, finish it.
---
- add durable live-session journal, checkpoint events, and status/resume/complete commands
- split browser session storage into a testable helper and harden accept/discard completion
- fix Astro live CSS preview mode and add recovery/live E2E coverage
- declare Bun as the package manager and add a Bun-native audit script
* fix(live): acknowledge fallback recovery states
* fix(live): flush recoverable handoffs promptly
* fix(live): keep recovery handoffs accurate
* fix(live): preserve poll reply metadata
* fix(live): treat event HTTP failures as failed sends
* fix(live): acknowledge manual completion through helper
* Add .impeccable project state paths
* Fix live disconnect recovery phase
* Refine live CSS authoring contract
* Test live CSS authoring guidance
* Harden live LLM E2E recovery
* Fix live recovery review issues
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Co-authored-by: Paul Bakaus <paulbakaus@pauls-mbp-3.lan>
