chore: import .claude command skills, CLAUDE.md, .gitignore, next_steps.md

- Vendor local .claude/ command skills (autopilot, plan, implement, etc.)
- Add CLAUDE.md pointing slash commands to .claude/commands/*/SKILL.md
- Untrack docs-Lokal/ and ignore .planning/ for local-only planning docs
- Include next_steps.md pulled from upstream

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/commands/ui-design/references/quality-checklist.md

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+# Quality Checklist
+
+Run through this checklist after generating or modifying a mockup. Three layers; run all that apply.
+
+## Layer 1: Structural Check (Always Run)
+
+### Semantic HTML
+- [ ] Uses `nav`, `main`, `section`, `article`, `aside`, `footer` — not just `div`
+- [ ] Single `h1` per page
+- [ ] Heading hierarchy follows h1 → h2 → h3 without skipping levels
+- [ ] Lists use `ul`/`ol`/`li`, not styled `div`s
+- [ ] Interactive elements are `button` or `a`, not clickable `div`s
+
+### Design Tokens
+- [ ] CSS custom properties defined in `<style>` block
+- [ ] Colors in HTML reference tokens (e.g., `var(--color-accent)`) not raw hex
+- [ ] Spacing follows the defined scale, not arbitrary pixel values
+- [ ] Font family matches DESIGN.md, not browser default or Inter/Roboto
+
+### Responsive Design
+- [ ] Mobile-first: base styles work at 375px
+- [ ] Content readable without horizontal scroll at all breakpoints
+- [ ] Navigation adapts: full nav on desktop, collapsed on mobile
+- [ ] Images/media have max-width: 100%
+- [ ] Touch targets minimum 44px on mobile
+
+### Interaction States
+- [ ] All buttons have hover, focus, active states
+- [ ] All links have hover and focus states
+- [ ] At least one loading state example (skeleton loader preferred)
+- [ ] At least one empty state with illustration + CTA
+- [ ] Disabled elements have visual indicator + explanation (title attribute)
+- [ ] Form inputs have focus ring using accent color
+
+### Component Quality
+- [ ] Button hierarchy: one primary per visible area, secondary and ghost variants present
+- [ ] Forms: labels above inputs, not placeholder-only
+- [ ] Error states: inline message below field with icon
+- [ ] No hamburger menu on desktop
+- [ ] No modal inside modal
+- [ ] No "Click here" links
+
+### Code Quality
+- [ ] Valid HTML (no unclosed tags, no duplicate IDs)
+- [ ] Tailwind classes are valid (no made-up utilities)
+- [ ] No inline styles that duplicate token values
+- [ ] File is self-contained (single HTML file, no external dependencies except Tailwind CDN)
+- [ ] Total file size under 50KB
+
+## Layer 2: Visual Check (When Browser Tool Available)
+
+Take a screenshot and examine:
+
+### Spacing & Alignment
+- [ ] Consistent margins between sections
+- [ ] Elements within the same row are vertically aligned
+- [ ] Padding within cards/containers is consistent
+- [ ] No orphan text (single word on its own line in headings)
+- [ ] Grid alignment: elements on the same row have matching heights or intentional variation
+
+### Typography
+- [ ] Heading sizes create clear hierarchy (visible difference between h1, h2, h3)
+- [ ] Body text is comfortable reading size (not tiny)
+- [ ] Font rendering looks correct (font loaded or appropriate fallback)
+- [ ] Line length: body text 50-75 characters per line
+
+### Color & Contrast
+- [ ] Primary accent is visible but not overwhelming
+- [ ] Text is readable over all backgrounds
+- [ ] No elements blend into their backgrounds
+- [ ] Status colors (success/error/warning) are distinguishable
+
+### Overall Composition
+- [ ] Visual weight is balanced (not all content on one side)
+- [ ] Clear focal point on the page (hero, headline, or primary CTA)
+- [ ] Appropriate whitespace: not cramped, not excessively empty
+- [ ] Consistent visual language throughout the page
+
+### Atmosphere Match
+- [ ] Overall feel matches the DESIGN.md atmosphere description
+- [ ] Not generic "AI generated" look
+- [ ] Color palette is cohesive (no unexpected color outliers)
+- [ ] Typography choice matches the intended mood
+
+## Layer 3: Compliance Check (When MCP Tools Available)
+
+### AccessLint MCP
+- [ ] Run `audit_html` on the generated file
+- [ ] Fix all violations with fixability "fixable" or "potentially_fixable"
+- [ ] Document any remaining violations that require manual judgment
+- [ ] Re-run `diff_html` to confirm fixes resolved violations
+
+### RenderLens MCP
+- [ ] Render at 1440px and 375px widths
+- [ ] Lighthouse accessibility score ≥ 80
+- [ ] Lighthouse performance score ≥ 70
+- [ ] Lighthouse best practices score ≥ 80
+- [ ] If iterating: run diff between previous and current version
+
+## Severity Classification
+
+When reporting issues found during the checklist:
+
+| Severity | Criteria | Action |
+|----------|----------|--------|
+| **Critical** | Broken layout, invisible content, no mobile support | Fix immediately before showing to user |
+| **High** | Missing interaction states, accessibility violations, token misuse | Fix before showing to user |
+| **Medium** | Minor spacing inconsistency, non-ideal font weight, slight alignment issue | Note in assessment, fix if easy |
+| **Low** | Style preference, minor polish opportunity | Note in assessment, fix during /design-polish |