v0.5.46 release (latest)

v0.5.46 release notes for the GitHub Release v0.5.46 (release task: Issue #1343).

Tag state (verified against origin)

Ref	Object	Points at
`v0.5.46`	annotated tag `e7f25ac27be42f0075e8e1cfbc55d21fd00d19e7`	commit `142346e7c00d96f838b8464b5ca5c33fa5e0fa19`

DeepSeek provider template: switch to deepseek-flash, the configuration Orbi’s own deliveries run on (Issue #1346; PR #1348)

launchd: a running instance whose plist changed on upgrade is never reloaded, so it keeps the old schedule (split from #1344) (Issue #1347; PR #1349)
retry_safe failures are never retried: re-queue a github_transient failure once instead of leaving it in ai-blocked (Issue #1351; PR #1352)

All runner instances fire in the same second: give each timer instance a deterministic offset (Issue #1320; PR #1330)
systemd stagger drop-in is outside the drift check, so an upgraded deployment never gets it and doctor/status report it as deployed (Issue #1344; PR #1354)
git fetch/push: treat ‘Permission denied (publickey)’ / ‘Could not read from remote repository’ as retryable (transient GitHub SSH failure blocked orbi-cloud#1157) (Issue #1350; PR #1353)

auto_next_milestone is host-only, so a managed tenant can set active_milestone but cannot stop the engine from overwriting it (Issue #1342; PR #1345)