Merge pull request #88 from respawn-app/dependabot/github_actions/github-actions-non-major-2e3a3db0fd

chore: bump version to 0.9.0

chore: add dependency updater and refresh deps

Merge pull request #95 from respawn-app/0.9.0

fix: compact background transition notice (closes #96)

test: require hydration reload in supervisor regression

fix: harden reviewer follow-up failure observability

fix: address remaining review findings

fix: preserve live compaction notices before hydration

fix: preserve copy fallback after developer feedback

feat: improve supervisor cache warning messaging

fix: preserve supervisor follow-up transcript ordering

fix: add prompt cache continuity restart tests

feat: extend transient status visibility

feat: add /copy slash command closes #69