docs: add ux remediation plan

TASKS.md

@@ -19,7 +19,12 @@ DoD:
 ## Backlog
 
 - `feat/frontend-refactoring-plan`
+- `feat/frontend-ux-review-plan`
 - `feat/frontend-xss-hardening`
+- `feat/frontend-i18n-remediation`
+- `feat/frontend-login-simplification`
+- `feat/frontend-settings-honesty-pass`
+- `feat/frontend-command-palette-decision`
 - `feat/frontend-shell-unification`
 - `feat/frontend-wizard-modularization`
 - `feat/frontend-build-pipeline`