Combine phpstan, cs-check, cs-fix into lint-php recipe; fix lint issues + test failures + duplicate detection bug

TODO.md

@@ -1,9 +1,8 @@
 # Current tasks
 
-## Commit history cleanup (round 2)
-- [ ] Squash 6x duplicate "cleanup modal + storage restructure" commits (vp→tt→m→tp→nm→ky) into one
-- [ ] Squash stray TODO.md commit (vx) into dialog margins commit (kx)
-- [ ] Abandon working-copy log-only commit (yr)
+## justfile: combine phpstan + cs-check + cs-fix into lint-php
+- [x] Merge phpstan, cs-check, cs-fix into single lint-php recipe with backward-compat aliases
+- [x] Run lint-php + cs-fix, fix all fixable issues (4 real bugs + CS formatting + regenerated baseline)
 
 ## Récapitulatif admin: fieldset + table fichiers
 - [x] Convert all sections to fieldsets with legends