feat: add admin setting to enable/disable anonymous posting (#9)

[JoshuaNam]

Changes (Issue #9)

• Added allowAnonymousPosts config flag to defaults.json (default: disabled)
• Added admin toggle in ACP → Settings → Posts → Posting Restrictions
• Added language strings for en-GB and en-US
• Admins can now globally enable/disable the anonymous posting feature

Testing

1. Navigate to ACP → Settings → Posts
2. Scroll to "Posting Restrictions" section
3. Verify "Allow anonymous posting" toggle appears
4. Toggle ON/OFF and save
5. Verify setting persists after page reload

Next Steps

• Issue Store anonymous flag in database #6 : Add database storage to persist anonymous flag with posts
• Issue Add anonymous post toggle to post composer #5 : Add "Post anonymously" checkbox to composer UI

Related Issues

Resolves #9

Before

Screen.Recording.2026-02-02.at.11.09.00.PM.mov

After

Screen.Recording.2026-02-02.at.11.17.31.PM.mov

[railway-app]

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In order to get automatic PR deploys, please add @JoshuaNam to your workspace on Railway.

[coveralls]

Pull Request Test Coverage Report for Build 21619236712

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 78.868%

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Totals
Change from base Build 21609320089:	0.002%
Covered Lines:	25376
Relevant Lines:	30346

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💛 - Coveralls

[cirex-web]

lgtm!
could you add your github account to the railway project using this link? https://railway.com/invite/UaE8exWsnIo