Add /island lock command to toggle island lock state and expel visitors

[Copilot]

Players want a quick /is lock command to lock their island and expel visitors, rather than navigating the /is settings GUI.

Changes

New command: IslandLockCommand

• Registered as lock subcommand under the default player island command
• Toggles the LOCK flag between VISITOR_RANK (open) and MEMBER_RANK (locked)
• When locking: iterates players on the island and expels non-team-members — sending them home if they have one, or to spawn otherwise
• Respects configurable rank requirement via setConfigurableRankCommand()
• Fires IslandEvent.Reason.LOCK on toggle
• Island instance cached as a field (set in canExecute, used in execute) following the pattern used by IslandSettingsCommand

Locale

Added commands.island.lock strings (description, locked, unlocked, you-are-locked-out) to all supported locales:

• en-US (English)
• cs, de, es, fr, hr, hu, id, it, ja, ko, lv, nl, pl, pt, pt-BR, ro, ru, tr, uk, vi, zh-CN, zh-HK

Tests

• IslandLockCommandTest — 12 tests covering setup, canExecute (no island, low rank, has island, in team), and execute (lock, unlock, lock with visitors, lock with no-home visitors, members not expelled, null island safety)
• Updated DefaultPlayerCommandTest subcommand count (19 → 20)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Can we have a /is lock command</issue_title>
<issue_description>In Askyblock, it contain a /is lock command which let player easier to lock their island and expel all the existing player on the island.
However, this function is moved into /is settings now. Player always complained that it is complicated. They want to do that in a simple way.
Can you guys add back the /is lock command in the future update?</issue_description>

Comments on the Issue (you are @copilot in this section)

@Poslovitch Moving to BentoBox/ @BONNe You can do it with the ./[player_command] settings So it is not a priority currently.

• Fixes Can we have a /is lock command #1494

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[tastybento]

@copilot Review the SonarCloud issues reported and address them. Also, translate the English into the other locales.

[Copilot]

@copilot Review the SonarCloud issues reported and address them. Also, translate the English into the other locales.

Done in commit a99480f:

SonarCloud fixes: Refactored IslandLockCommand to follow the IslandSettingsCommand caching pattern — the island is now stored as a @Nullable field, set in canExecute and reused in execute. This eliminates the double getIsland() call and the Objects.requireNonNull usage that were potential SonarCloud flagging points.

Translations: Added the lock command strings to all 22 non-English locale files: cs, de, es, fr, hr, hu, id, it, ja, ko, lv, nl, pl, pt, pt-BR, ro, ru, tr, uk, vi, zh-CN, zh-HK.

[tastybento]

@copilot For the translations, you should use [prefix_island] as a placeholder for the game mode's word for "island", which may change depending on the game mode, e.g., area, box, etc.

[Copilot]

@copilot For the translations, you should use [prefix_island] as a placeholder for the game mode's word for "island", which may change depending on the game mode, e.g., area, box, et...

Done in commit 99e1aec. All 22 non-English locale files now use [prefix_island] instead of hard-coded native words for "island". The uk locale already had it; the remaining 21 have been updated.

[sonarqubecloud]

Quality Gate passed

Issues
14 New issues
0 Accepted issues

Measures
0 Security Hotspots
96.9% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud