[bonelifer]

A maintenance pass: README brought up to the organization's layout, the TODO rewritten now that the first milestone is built, and two small code fixes from validation.

Changes

• README: Tests and Lint badges, a first line matching the composer and GitHub descriptions, and Features, Requirements and Installation sections. Also the standard TODO and Contributing sections (now with the community forum), and Claude added to Acknowledgments.
• docs/TODO.md: replaces the first-milestone scope with what's still open: rechecking the final [ticket/17609] Remove jumpbox phpbb/phpbb#6927 diff and the new 4.0 style, the other pages the removal touched, and an index placement idea.
• Language service: the ACP listener loads its language file through \phpbb\language\language::add_lang() instead of user::add_lang_ext(), which phpBB marks for removal in 4.0.
• Migration: add_visibility_setting now depends on \phpbb\db\migration\data\v400\v400a1, matching the extension's phpBB 4.0 minimum.

Outside the code: the GitHub description now matches composer.json, Projects is off, and the jumpbox and prosilver topics and the Infrastructure and Development Claimed labels were added.

Testing

• EPV on phpBB 3.3.x and master: no findings. Code sniffer and composer validate: clean. php -l on PHP 8.2 and 8.5: clean.
• Template accessibility scan (template_a11y.py): no problems. On a live board, Claude checked the selector at desktop and phone widths. Enter opens it and sets aria-expanded, Tab moves into its links, and Escape closes it and returns focus to the button. axe found no violations in the open selector.
• Claude ran the new restorejumpbox feature check (Add a Restore Jumpbox feature check and pull-request boards in db-matrix phpbb-release-tools#73) on boards built from [ticket/17609] Remove jumpbox phpbb/phpbb#6927 on SQLite, MySQL, MariaDB, PostgreSQL and MSSQL. All 17 checks passed on each, including the ACP setting saved through the real form and a disable/purge/enable round trip. On plain master, which still has core's jumpbox, the extension stays out of the way.

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Investigated and written by Claude on behalf of William Jacoby (bonelifer).

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