Independent review by @nesquena confirmed all blockers resolved. Theme×skin two-axis system replaces old monolithic color schemes. Closes#627. Co-Authored-By: aronprins <aronprins@users.noreply.github.com>
Squash-merges PR #584 by @aronprins.
Drops the meta row (message count, model slug, source-tag badge) from every sidebar session item. Each session now renders as a single title line — visible session count roughly doubles at typical viewport height.
Changes merged verbatim from contributor branch, plus maintainer additions:
- CHANGELOG entry for v0.50.64
- Version badge bump to v0.50.64
- New test: test_relative_time_today_bucket (closes minor coverage gap from code review)
Co-authored-by: aronprins <aronprins@users.noreply.github.com>
- sessions.js _formatSourceTag(): return null for unrecognised tags
instead of raw string — prevents legacy 'N/A' values from surfacing
- sessions.js metaBits push: guarded with _stLabel null check so only
known platform labels appear in the session metadata line
- sessions.js [SYSTEM:] title fallback: drop raw s.source_tag middle
term, fall back directly to 'Gateway' for unknown sources
7 new tests in test_issue429.py.
1 updated test in test_sprint40_ui_polish.py (new guarded push pattern).
Closes#429
