Phase 5b of go-port-cloud-run plan. Port 14855-word dictionary
(89 KB, byte-identical to JS source) and four wordle commands
(/wordle, /wordle_new, /wordle_giveup, /wordle_stats).
KV wire-format parity: GameState/Stats JSON match JS shape;
*int64 LastResultAt for null-value compatibility. Two real bugs
caught and fixed: (1) defaultRNG data race in handlers — switched
to math/rand.Intn (mutex-protected package-level); (2) Get→mutate→Put
logical race in groups — added per-subject sync.Mutex map to serialize
access. TTL deferred (Firestore has no expirationTtl equiv — Phase 11 GC).
Phase 5a of go-port-cloud-run plan: port first 2 of 4 modules (wordle/loldle
deferred to later phase). Port util.go, info.go, help.go, stickerid.go and
misc.go with tests. /help renders registry view; /info exposes chat/thread/
sender ids; /stickerid (private) returns bot-scoped file_ids; /ping writes
last_ping KV ms-epoch JSON for byte-parity, /mstats reads it, /fortytwo is
easter egg.
Registry-pointer-in-Deps required for /help to access module registry—pointer
captured at factory time, stable post-Build. Static factory catalog moved from
modules pkg to cmd/server to break import cycle. Code-review fixes applied in
same session: /info nil-deref guard, KV wire-format parity.
Implements Phases 02 (partial) and 03 of the go-port-cloud-run plan.
Introduces module framework with per-module KV prefix isolation,
health check endpoint, request timeout protection, and comprehensive
test coverage. Cloud Run deployment deferred to Phase 01.
Security hardening: constant-time secret comparison, cron auth bridge,
and secrets stripped from dependency environment exports. Includes
Dockerfile, GitHub CI workflow (vet + race + build), and integration
tests for module lifecycle.
tiennm99