feat: pie chart v2

@kiva/kv-components/SKILLS.md

@@ -0,0 +1,31 @@
+# @kiva/kv-components Skills Catalog
+
+AI-assisted development guides for common workflows in this package.
+
+## Available Skills
+
+| Skill | File | Description |
+|-------|------|-------------|
+| make-to-vue | [docs/make-to-vue.md](docs/make-to-vue.md) | Use when porting a Figma Make (or other React) component into a Vue 3 kv-components component. Triggered by requests like "port this to Vue" or by the user sharing React source, a Figma Make URL, or a Figma file link. |
+
+## AI Prompts
+
+Drop-in prompts for generating Storybook stories and MDX documentation with an AI assistant.
+
+| Prompt | File | Description |
+|--------|------|-------------|
+| ai-stories-prompt | [docs/ai-stories-prompt.md](docs/ai-stories-prompt.md) | Prompt for generating standardized Storybook `.stories.js` files for a component. |
+| ai-documentation-prompt | [docs/ai-documentation-prompt.md](docs/ai-documentation-prompt.md) | Prompt for generating the matching `Docs.mdx` documentation page for a component. |
+| how-to-use-ai-prompts | [docs/how-to-use-ai-prompts.md](docs/how-to-use-ai-prompts.md) | Walkthrough of when and how to use the prompt files above. |
+
+## Authoring Guides & Checklists
+
+Reference material the AI prompts pull from — useful when reviewing output by hand or authoring without a prompt.
+
+| Doc | File | Description |
+|-----|------|-------------|
+| Component Stories Guide | [docs/component-stories-guide.md](docs/component-stories-guide.md) | Standards and best practices for Storybook stories in kv-components. |
+| Component Stories Checklist | [docs/component-stories-checklist.md](docs/component-stories-checklist.md) | Checklist for verifying story coverage and quality before merging. |
+| Component Documentation Guide | [docs/component-documentation-guide.md](docs/component-documentation-guide.md) | Standards and best practices for MDX component documentation. |
+| Component Documentation Checklist | [docs/component-documentation-checklist.md](docs/component-documentation-checklist.md) | Checklist for verifying documentation completeness before merging. |
+| Storybook Folder Prefixes | [docs/storybook-folder-prefixes.md](docs/storybook-folder-prefixes.md) | Required title prefixes for organizing components in the Storybook sidebar. |

@kiva/kv-components/docs/make-to-vue.md

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+---
+name: make-to-vue
+description: Use when porting a Figma Make (or other React) component into a Vue 3 component for @kiva/kv-components — typically triggered by a request like "port this to Vue", "convert this React component", or when the user shares Figma Make code, a Figma Make URL, or a Figma file link.
+---
+
+# Figma Make to Vue Component Porting Guide
+
+A repeatable process for converting Figma Make-generated React components into Vue 3 components for `@kiva/kv-components`.
+
+## How to Use This Skill
+
+**Announce at start:** "I'm using the make-to-vue skill to port `<ComponentName>` into kv-components."
+
+Then walk the [Procedure](#procedure) below in order. Each phase has explicit verification steps; do not move to the next phase until the current one passes. If any **Stop-and-ask** condition fires, pause and check with the user before continuing.
+
+### Inputs You Need Before Starting
+
+Before Phase 1, confirm you have at least one of the following. If none are present, **stop and ask the user** which they can provide:
+
+- React/TSX source code for the component (pasted, attached, or saved into the repo — `/source-files/` at the repo root is a suggested location but not required)
+- A Figma Make URL (so the source can be inspected/exported)
+- A Figma file or frame link for the target design (for visual reference, color, and spacing verification)
+
+Screenshots help but are not a substitute for source code or a Figma link.
+
+### Stop-and-Ask Conditions
+
+Pause and ask the user rather than guessing when:
+
+- No source code or Figma Make URL is available — porting from a screenshot alone will produce drift.
+- The component overlaps an existing kv-components component (see Phase 1.2). Confirm whether to extend the existing one, create a `V2`, or build a new component.
+- Hardcoded colors don't map cleanly to a design token. Confirm the intended token rather than inventing a new hex.
+- The source uses an animation library (`motion/react`, `framer-motion`, etc.) and the equivalent CSS transition would visibly differ. Confirm whether to match exactly or adapt.
+- Accessibility behavior is unclear (e.g., what should screen readers announce, what should keyboard interactions trigger).
+
+## Procedure
+
+The [Quick Reference: Porting Checklist](#quick-reference-porting-checklist) at the end of this doc is the spine — work through it top-to-bottom. The phases below elaborate each step. After every phase, run the listed verification before moving on.
+
+### Verification Gates
+
+| After Phase | Verify |
+|-------------|--------|
+| 1 (Analysis) | You can name the props, state, sub-components, animations, and existing equivalents. If not, re-read the source. |
+| 2 (Translation) | Component renders in Storybook with representative data and no console errors. |
+| 3 (Structure) | Component is exported in `src/vue/index.ts` and visible in Storybook sidebar under the correct folder prefix. |
+| 4 (Design system) | No raw hex colors or pixel spacing remain unless the user explicitly approved them. |
+| 5 (Testing) | `npm run test` passes (lint + jest), including `jest-axe` accessibility check. |
+| 6 (Storybook) | Default + edge-case stories render correctly under visual review. |
+
+If a verification fails, fix the underlying issue before continuing — do not paper over it to keep moving.
+
+## Prerequisites
+
+- Source React code available (see [Inputs You Need Before Starting](#inputs-you-need-before-starting))
+- Familiarity with the target component's Figma design (request links/screenshots if needed)
+- Read `@kiva/kv-components/AGENTS.md` for component development patterns
+
+## Phase 1: Analysis
+
+### 1.1 Read the React Source
+
+Read the source file and identify:
+
+- **Props and data model** — What data does the component accept? Is it hardcoded or dynamic?
+- **State management** — React hooks (`useState`, `useEffect`, `useRef`) that need Vue equivalents
+- **Sub-components** — Internal components that may become part of the Vue file or separate utils
+- **External dependencies** — Libraries used (e.g., `motion/react`, `framer-motion`)
+- **Styling approach** — Tailwind classes, inline styles, CSS modules
+
+### 1.2 Check for Existing Equivalents
+
+```
+# Check if a similar component already exists
+Glob: @kiva/kv-components/src/vue/Kv*<ComponentName>*.vue
+
+# Check for reusable utils
+Glob: @kiva/kv-components/src/utils/**/*
+```
+
+Decide: new component, v2 of existing, or enhancement to existing.
+
+### 1.3 Identify What Changes
+
+Figma Make output is presentational/demo code. Determine what needs to change:
+
+- **Hardcoded data** -> Dynamic props
+- **Hardcoded colors** -> Design system tokens from `@kiva/kv-tokens/primitives.js`
+- **Fixed dimensions** -> Container-responsive sizing
+- **Presentational strings** -> Configurable via props/slots
+- **React animation libraries** -> CSS transitions or Vue composables (prefer no extra deps)
+
+## Phase 2: Translation Patterns
+
+### 2.1 React Hooks to Vue Composition API
+
+| React | Vue 3 |
+|-------|-------|
+| `useState(value)` | `ref(value)` |
+| `useEffect(() => {}, [deps])` | `watch(deps, () => {})` or `onMounted(() => {})` |
+| `useRef(null)` | `ref(null)` or `templateRef` |
+| `useMemo(() => {}, [deps])` | `computed(() => {})` |
+| `useCallback(() => {}, [deps])` | Plain function (no memoization needed in Vue) |
+| Custom hooks | Composables in `src/utils/use*.ts` |
+
+### 2.2 JSX to Vue Template
+
+| React JSX | Vue Template |
+|-----------|-------------|
+| `{condition && <div>}` | `<div v-if="condition">` |
+| `{items.map(item => <X key={item.id} />)}` | `<X v-for="item in items" :key="item.id" />` |
+| `className="..."` | `class="..."` |
+| `style={{ color: 'red' }}` | `:style="{ color: 'red' }"` |
+| `onClick={handler}` | `@click="handler"` |
+| `{children}` | `<slot />` |
+| `<motion.div animate={...}>` | CSS transitions or Vue transition components |
+
+### 2.3 Styling Translation
+
+Figma Make outputs raw Tailwind classes. Convert to kv-components patterns:
+
+- **Add `tw-` prefix** to all Tailwind utility classes
+- **Replace hardcoded font families** with design system fonts (`tw-font-sans`, `tw-font-serif`)
+- **Replace hardcoded colors** with token references where possible
+- **Replace pixel values** in Tailwind classes with spacing scale values (8px increments)
+- **Use design tokens** from `@kiva/kv-tokens/primitives.js` for colors, spacing, typography
+
+### 2.4 Animation Translation
+
+Prefer CSS transitions over JavaScript animation libraries:
+
+| Figma Make / React | Vue Equivalent |
+|--------------------|----------------|
+| `motion/react` animate prop | CSS `transition` property |
+| `transition={{ duration: 0.5 }}` | `transition: property 500ms ease-in-out` |
+| Staggered animations | Computed `transition-delay` per item index |
+| Spring animations | CSS `cubic-bezier()` or `ease-in-out` |
+| `requestAnimationFrame` hooks | Vue composable with `onMounted`/`onUnmounted` lifecycle |
+| Opacity/transform tweens | CSS transitions on those properties |
+
+For complex numeric animations (count-up, interpolation), create a composable in `src/utils/`:
+
+```ts
+// src/utils/useCountUp.ts
+import { ref, watch, onUnmounted } from 'vue';
+
+export function useCountUp(target: Ref<number>, active: Ref<boolean>, duration = 500) {
+  // requestAnimationFrame-based tween with easing
+  // Returns reactive ref with current display value
+}
+```
+
+## Phase 3: Component Structure
+
+### 3.1 File Creation Checklist
+
+1. `src/vue/Kv<Name>.vue` — Main component
+2. `src/utils/<utilName>.ts` — Extracted logic (composables, helpers)
+3. `src/vue/stories/Kv<Name>.stories.ts` — Storybook stories (create EARLY)
+4. `tests/unit/specs/components/Kv<Name>.spec.ts` — Component tests
+5. `tests/unit/specs/utils/<utilName>.spec.ts` — Utility tests
+6. Export in `src/vue/index.ts`
+
+### 3.2 Component Patterns
+
+Follow these kv-components conventions:
+
+- **Script**: `<script lang="ts">` with `export default { setup() {} }` or `<script setup lang="ts">`
+- **Styling**: `<style lang="postcss" scoped>` for component-specific styles
+- **Props**: TypeScript typed with JSDoc for Storybook auto-docs
+- **Naming**: `Kv` prefix, PascalCase (e.g., `KvPieChartV2`)
+- **Accessibility**: ARIA attributes, semantic HTML, keyboard support
+- **No references to the source framework**: The shipped Vue component is the source of truth — code, comments, and JSDoc must not mention "React", "Figma Make", "the React source", etc. Strip these as you translate, and double-check before committing.
+
+### 3.3 When to Extract Utils
+
+Extract into `src/utils/` when:
+- Logic involves lifecycle management (rAF, timers, observers)
+- Logic is reusable across components
+- Logic is complex enough to benefit from independent unit testing
+- The main component file would exceed ~300 lines without extraction
+
+## Phase 4: Design System Integration
+
+### 4.1 Colors
+
+Always check `@kiva/kv-tokens/primitives.js` for existing color tokens before using hardcoded hex values. Map Figma Make colors to the closest token:
+
+```js
+import kvTokensPrimitives from '@kiva/kv-tokens';
+const { colors } = kvTokensPrimitives;
+// colors['eco-green'].DEFAULT, colors.marigold['3'], etc.
+```
+
+### 4.2 Typography
+
+Map Figma Make font references:
+- `Kiva Post Grot:Book` -> `font-weight: 300` (light/book)
+- `Kiva Post Grot:Medium` -> `font-weight: 500` (medium)
+- Font family -> `tw-font-sans` (PostGrotesk)
+
+### 4.3 Spacing
+
+Convert pixel values to the 8px spacing scale:
+- `4px` -> `tw-p-0.5`
+- `8px` -> `tw-p-1`
+- `16px` -> `tw-p-2`
+- etc.
+
+## Phase 5: Testing
+
+### 5.1 Test Requirements
+
+Every ported component must have:
+
+1. **Accessibility test** — jest-axe `toHaveNoViolations()`
+2. **Rendering tests** — correct output for various prop combinations
+3. **Interaction tests** — click/hover/keyboard behaviors
+4. **Edge cases** — empty data, single item, maximum items
+5. **Utility tests** — independent tests for extracted composables/helpers
+
+### 5.2 Test Structure
+
+```ts
+import { render } from '@testing-library/vue';
+import { axe } from 'jest-axe';
+import KvComponentName from '#components/KvComponentName.vue';
+
+describe('KvComponentName', () => {
+  it('should have no automated accessibility violations', async () => {
+    const { container } = render(KvComponentName, { props: { /* ... */ } });
+    const results = await axe(container);
+    expect(results).toHaveNoViolations();
+  });
+
+  // ... rendering, interaction, edge case tests
+});
+```
+
+## Phase 6: Storybook
+
+Create stories early in the process for visual review:
+
+1. **Default story** with representative data
+2. **Loading/skeleton state**
+3. **Edge cases** (empty, single item, many items)
+4. **Prop variations** (different modes, sizes, configurations)
+5. **Interactive controls** via argTypes
+
+## Quick Reference: Porting Checklist
+
+- [ ] Read React source, identify hooks/state/deps/sub-components
+- [ ] Check for existing kv-components equivalents
+- [ ] Map hardcoded values to design system tokens
+- [ ] Create Storybook story early for visual review
+- [ ] Translate React hooks to Vue Composition API
+- [ ] Convert JSX to Vue template with `tw-` prefix classes
+- [ ] Replace animation libraries with CSS transitions
+- [ ] Extract complex logic into `src/utils/` composables
+- [ ] Export component in `src/vue/index.ts`
+- [ ] Write component tests with jest-axe accessibility check
+- [ ] Write utility tests for extracted logic
+- [ ] Review in Storybook across stories
+- [ ] Run `npm run test` (lint + jest)

@kiva/kv-components/jest.config.cjs

@@ -51,8 +51,15 @@ module.exports = {
 		}],
 		'^.+\\.ts$': ['ts-jest', {
 			useESM: true,
+			diagnostics: false,
 			tsconfig: {
 				allowJs: true,
+				types: ['jest', 'node'],
+				baseUrl: '.',
+				paths: {
+					'#components/*': ['src/vue/*'],
+					'#utils/*': ['src/utils/*'],
+				},
 			},
 		}],
 		'^.+\\.js$': 'babel-jest',

@kiva/kv-components/src/utils/pieChartColors.ts

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+import kvTokensPrimitives from '@kiva/kv-tokens';
+
+const { colors } = kvTokensPrimitives;
+
+export const LOADING_BG_COLOR: string = colors.gray[100]; // #F5F5F5
+export const OTHER_SEGMENT_BG_COLOR: string = colors.gray[300]; // #C4C4C4
+/**
+ * Tiered chart color palette drawn from kv-tokens design primitives.
+ * Tier 1 (indices 0-7): Bold primary colors for maximum visual distinction.
+ * Tier 2 (indices 8-13): Lighter variants for datasets with more segments.
+ * Colors cycle when the dataset exceeds palette length.
+ */
+export const PIE_CHART_COLORS: string[] = [
+	// Tier 1 — Bold primaries
+	colors['eco-green']['3'], // #276A43
+	colors.marigold.DEFAULT, // #F4B539
+	colors['desert-rose'].DEFAULT, // #C45F4F
+	'#2E3BAD', // Custom blue for contrast
+	'#874FFF', // Custom purple for contrast
+	colors.stone['3'], // #635544
+	colors.brand['500'], // #4AB67E
+	colors.marigold['3'], // #996210
+	// Tier 2 — Lighter variants
+	colors['eco-green']['2'], // #78C79F
+	colors.marigold['2'], // #F8CD69
+	colors['desert-rose']['2'], // #E0988D
+	colors.stone['2'], // #AA9E8D
+	colors.brand['300'], // #95D4B3
+	colors['desert-rose']['3'], // #A24536
+];
+
+/**
+ * Get the chart color for a given index, with optional override.
+ * Cycles through the palette when index exceeds palette length.
+ */
+export function getPieChartColor(index: number, customColor?: string): string {
+	if (customColor) {
+		return customColor;
+	}
+	return PIE_CHART_COLORS[index % PIE_CHART_COLORS.length];
+}