Add majority lock and unlock voting for T5 and T6

CHANGELOG.md

@@ -4,6 +4,45 @@ Changes are listed newest first, with an independent version for every individua
 T5/T6 script and each native plugin. Current versions are recorded in
 [versions.json](versions.json); see the [version policy](README.md#versioning).
 
+## 2026-10-18
+
+### Add majority votes to lock and unlock the lobby
+
+| Component | Version | Affected source |
+| --- | --- | --- |
+| `tws_t5_lock.gsc` | `1.1.0` | `t5/scripts/tws_t5_lock.gsc` |
+| `tws_t6_lock.gsc` | `1.1.0` | `t6/scripts/tws_t6_lock.gsc` |
+
+- Add exact, case-insensitive `.lock` (round 6 onward) and `.unlock` commands
+  with help registration. Both need a strict majority of all connected players:
+  1/1, 2/2, 2/3, 3/4, or `floor(players / 2) + 1` in larger lobbies. Solo
+  requests apply immediately; dead, spectating and AFK connections count.
+- Use a 60-second ballot with one vote per connection, no extension on repeats,
+  and fresh votes after expiry or state changes. Recount joins/disconnects;
+  disconnected votes do not count, and reconnects do not inherit votes.
+- Retain the configurable automatic lock at round 20, consumed once per match.
+  A successful unlock overrides it for the rest of the match, including after
+  an early manual lock. Players can still vote to relock. Automatic locking
+  clears any incomplete manual lock ballot. Generate a fresh password for each
+  lock and clear it and pending votes at startup and HUD/stock game over.
+- Keep early locking optional: no round-6 prompt. Use ordinary message text
+  for vote progress, expiry and state changes, with private duplicate/unavailable
+  replies. Update help pagination coverage and both games' documentation.
+- Compatibility: no new dependency requirement. Keep the matching common
+  `1.0.0+` and HUD `1.0.0+` modules installed; HUD still supplies round events.
+  T5 and T6 receive matching behavior using their existing namespaces and
+  initialization conventions. No common, HUD, native-plugin or upstream-pin
+  source changes are needed.
+- Validation: 76 lock vote/lifecycle checks, 74 service HUD checks and 14 core
+  HUD checks passed with engine shims. The T6 lock script compiled and assembled
+  with upstream gsc-tool `8f1d6bd` libraries. T5 has no gsc-tool backend; live
+  Windows/Plutonium loading, message rendering and connection blocking still
+  need validation on both engines. No native-plugin build or deployment was
+  performed. See [lock voting and live checks](README.md#lobby-lock-voting-t5-and-t6).
+- Deployment: copy the updated lock script for each installed game to its
+  existing script directory and restart the map. No full server-process restart
+  or additional deployment action is required for this script-only update.
+
 ## 2026-10-17
 
 ### Allow solo and last-active-player AFK