- New src/packages/cache.rs module with PackageCacheState, stale detection,
state persistence, 404 retry logic
- Add refresh_package_cache() and last_cache_update() to PackageManagerBackend
trait, implemented on all 5 backends (APT, DNF, YUM, APK, Pacman)
- Health check now reports last_cache_update and cache_status fields,
triggers cache refresh if stale (>4h), returns degraded on failure
- Patch apply jobs now force cache refresh before applying patches,
with 404/fetch error retry (1 retry after cache refresh)
- Cache state persists to /var/lib/linux_patch_api/state/cache.json
- Version bump to 1.1.17
- Update ARCHITECTURE.md and REQUIREMENTS.md (FR-007)
Closes: #2
- Arch: remove system user creation, root:root ownership, fix $startdir path in PKGBUILD
- RPM: uncomment BuildRequires, add runtime deps (openssl-libs, ca-certificates), remove system user, root:root ownership
- Alpine: remove system user creation, root:root ownership, co-locate install script with APKBUILD
- All platforms now match Debian: no system user, root:root, create dirs, copy example configs, enable service
- Remove user/group creation from preinst (service runs as root)
- Change directory ownership to root:root in preinst and postinst
- Remove user/group deletion from postrm
- Service runs as root, no dedicated user needed
- Fix reboot_system() to use shutdown -r +N for delayed reboots
- Fix patches handler to call reboot_system() instead of just logging
- Add CAP_SYS_BOOT capability to systemd service for LXC reboot support
- Remove unused warn import from packages/mod.rs
- Bump version to 0.3.1
