Using .status() leaks stderr directly to system logs, causing noisy
iptables error messages. Switch all networking CLI invocations to use
.invoke() which captures stderr properly. For check-then-act patterns
(iptables -C), use .invoke().await.is_err() instead of
.status().await.map_or(false, |s| s.success()).
- Run de/ser roundtrip in pre_init even when db version matches, ensuring
all #[serde(default)] fields are populated before any typed access
- Add patchdb.md documentation for TypedDbWatch patterns
- Update TS bindings for CheckPortParams, CheckPortRes, ifconfigUrl
- Update CLAUDE.md docs with patchdb and component-level references
