docs(todo): templates and a UI/UX pass for the add-event and add-task forms

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

TODO.md

@@ -20,3 +20,12 @@
     built-ins should keep answering the same setting.
   - Code: `src/client/components/Controls.tsx` (*What you see*), `src/client/state/usePrefs.ts`,
     `src/shared/routines.ts` (`activeRoutines`, `routineToAsk`), `src/client/components/Dailies.tsx`.
+- [ ] Give *Add an event* and *Add a task* easy-to-use templates, and give both forms a UI/UX pass.
+  - Templates: one tap fills the common shapes so the reader only adjusts the details — for
+    example a weekly points task, a monthly shop reset, a login event, a banner with a known end.
+    A template only pre-fills fields; nothing is saved until the reader saves, and no figure is
+    presented as sourced unless it is (the bar `src/shared/routines.ts` holds built-ins to).
+  - UI/UX pass: both forms grew field by field (`src/client/components/CustomForms.tsx`
+    `EventForm`, `src/client/components/TaskForm.tsx`). Review them as a reader would — field
+    order, defaults, copy, validation messages, how a cadence and a measure are chosen, phone
+    width — against `docs/DESIGN.md` and `docs/PRODUCT.md`.