- routes.py: reject glob wildcards (* ? [ ]) in skill name param to
prevent rglob wildcard injection when serving linked files
- panels.js: replace inline onclick+esc() with data-* attributes and
addEventListener for skill tag removal and linked-file clicks;
esc() is HTML-safe but not JS-safe -- apostrophes in names caused
JS syntax errors and _cronSelectedSkills array corruption
- ui.js: fix _fmtTokens(null/undefined) returning 'null'/'undefined'
by guarding with (!n||n<0) -> '0'; add data-role attribute to msg-row
elements so usage badge correctly targets the last assistant row
instead of the last row regardless of speaker
- tests: rename test_sprint24.py -> test_sprint23.py (wrong sprint #);
add 3 new tests: path traversal rejection, wildcard name rejection,
cron create with skills; strengthen existing tests to assert field
presence explicitly (was using .get(field, 0)==0 which never caught
a missing field)