User requested replacing the in-house color disclosure with the
categories color+icon popover. Done as a controller extraction so
categories and goals share one Stimulus controller (user's option:
"Extract a shared color_icon_picker_controller.js").
- `git mv` app/javascript/controllers/category_controller.js to
color_icon_picker_controller.js. Categories form + color_avatar
partial updated to use the new identifier (data-controller=
"color-icon-picker", target/action selectors renamed).
- Goal model gains an icon column (migration
20260511190000_add_icon_to_goals.rb) + ICONS = Category.icon_codes
+ inclusion validation. GoalsController permits :icon in
goal_params + goal_update_params.
- Goals::AvatarComponent now renders icon when present (falls back to
first-letter initial), and adopts the Categories tinted-bg + colored
-content style (bg = `color-mix(in oklab, COLOR 10%, transparent)`,
text/icon = COLOR). Matches the picker's live preview so what the
user sees during selection equals the saved state.
- New goals/_color_picker.html.erb mirrors categories/_form's popover:
avatar + pen overlay summary + popup with color row (+ rainbow
custom-hex trigger) + icon grid. Pickr / contrast validation / auto-
adjust all inherited from the shared controller.
- Stepper step 1 layout: drop the inline letter-avatar (data-goal-
stepper-target="avatarPreview") in favour of the picker avatar next
to the name input. Step 1's tail no longer renders a separate color
partial. Edit form passes icons local through.
Verified live: new goal modal renders 11 color radios (10 presets +
custom) + 141 icon radios + pen-summary; categories form still
operational (no console errors) under the renamed controller.
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