Adds a fourth pass to ProjectZomboidRedactor that scrubs IPv4
(strict 0-255 octets, optional :port suffix) and IPv6 (full,
abbreviated, bracketed-with-port, IPv4-mapped) addresses, replacing
them with the literal [REDACTED_IP]. The new pass runs first
because it is pattern-disjoint from the Steam-ID -> name -> coords
chain. A single redactIpAddresses(bool) toggle controls both
families; the existing toggles are unchanged. Strict regexes plus
filter_var() validation prevent false positives on PZ timestamps
(12:00:00.000) and PHP/Java scope ops (Foo::bar). 20 new tests
cover bare/with-port/multiple/loopback/boundary IPv4, full /
abbreviated / bracketed / IPv4-mapped IPv6, scope-op rejection,
timestamp rejection, Steam-ID non-collision, toggle-off, and
idempotence.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>