Add a hot-reloaded override table (overrides.json) that forces specific
hosts/IPs to a chosen profile regardless of the active profile, applied
across all bridge ports. Matching supports exact host, wildcard, domain
suffix, single IP, and CIDR. Managed via `proxy-bridge override
list|add|remove|clear` and surfaced in status/config.
Also fix two PAC sandbox helpers: localHostOrDomainIs (unqualified-host
case) and isInNet (was a no-op stub, now does real IPv4 subnet matching).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>