Anonymized/hidden names on lobby preview

[Aotumuri]

Resolves #2962

Description:

Anonymize lobby preview player names when “Hidden names” is enabled, using the same deterministic mapping as in-game.

Please complete the following:

• I have added screenshots for all UI updates
• I process any text displayed to the user through translateText() and I've added it to the en.json file
• I have added relevant tests to the test directory
• I confirm I have thoroughly tested these changes and take full responsibility for any bugs introduced

Please put your Discord username so you can be contacted if a bug or regression is found:

aotumuri

[CLAassistant]

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1 out of 2 committers have signed the CLA.

✅ ryanbarlow97
❌ Aotumuri
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[coderabbitai]

Walkthrough

Username anonymization is now applied in the lobby preview when users have anonymized names enabled. A currentClientID property is introduced and propagated through components to identify the viewing player, allowing their own name to remain visible while other players' names are randomized according to user settings.

Changes

Cohort / File(s)	Summary
Client ID State Management src/client/JoinPrivateLobbyModal.ts	Introduces currentClientID private state field initialized as empty string. Generates new client ID via generateID() when joining a lobby and propagates it through the JoinLobbyEvent payload at multiple join-flow checkpoints. Resets ID when closing or reinitializing the modal.
Client ID Propagation src/client/HostLobbyModal.ts	Adds new property binding .currentClientID=${this.lobbyCreatorClientID} to LobbyPlayerView component to pass the creator's client ID downstream.
Anonymization Logic & Display src/client/components/LobbyPlayerView.ts	Implements conditional username anonymization based on user settings. Adds currentClientID property to track the viewing player. Introduces displayUsername() helper method that returns the original name for disabled anonymization or current client, otherwise returns randomized name via createRandomName(). Updates all render paths (team lists, host actions, prompts, aria-labels) to use displayUsername() instead of raw username.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🎭 In lobbies veiled, where names take flight,
Players masked in randomized delight,
Yet you stay clear to your own keen eye,
A whimsical dance where anonymity and you comply! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Anonymized/hidden names on lobby preview' clearly and concisely describes the main change—adding name anonymization to the lobby preview UI.
Linked Issues check	✅ Passed	The PR implements the core requirement from issue #2962: displaying anonymized names in the lobby preview using deterministic mapping consistent with in-game behavior.
Out of Scope Changes check	✅ Passed	All changes are directly related to implementing lobby preview name anonymization. The addition of currentClientID tracking and displayUsername helper are necessary to support the anonymization feature.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check	✅ Passed	The pull request description clearly relates to the changeset, describing the implementation of name anonymization in the lobby preview when the 'Hidden names' setting is enabled.

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