docs: Foundation Freeze v1.0 + directory reorganization

- FOUNDATIONS-v1.0.md:
  - Freeze contract for Landvex Design System
  - Scope: Motion, AI Principles, Semantic Colors, Grid, Elevation, Typography, RFC Template, Definition of Done
  - Reference components: Button, Input, Select, Card (all ~83%)
  - Invariants: token rules, component rules, accessibility rules, AI rules
  - Change policy: no new foundation concepts without v2.0 RFC
  - Versioning: 1.0.x patches, 1.x.0 new components, 2.0.0 new foundations
  - Compatibility matrix for all foundations and components

- Directory reorganization:
  - docs/design/foundations/ → frozen foundation documents
  - docs/design/components/ → component RFCs
  - docs/design/README.md → navigation and structure

- Foundation documents moved:
  - TOKEN_PHILOSOPHY, SEMANTIC_COLOR_SYSTEM, GRID_ELEVATION
  - AI_DESIGN_PRINCIPLES, COMPONENT_TEMPLATE, RFC_DEFINITION_OF_DONE
  - DESIGN_ANTI_PATTERNS, COMPONENT_DECISION_TREE, GLOSSARY
  - BRAND_PALETTE, RELEASE_DEFINITION, SEMANTIC_COLOR_SYSTEM_REVIEW

- Component RFCs moved:
  - RFC-002-Input, RFC-003-Select, RFC-004-Card

Rationale: Clear separation between foundations (stable platform) and
components (built on top). Foundations v1.0 frozen — components can be
added freely within v1.x, but foundations require v2.0 RFC to change.
This prevents gradual erosion of the design system architecture.

docs/design/foundations/COMPONENT_TEMPLATE.md

@@ -0,0 +1,143 @@
+# COMPONENT TEMPLATE
+
+**Template for All Component Specifications**
+
+| | |
+|---|---|
+| **Version** | 1.0 |
+| **Status** | LOCKED |
+| **Scope** | All Landvex & quiXzoom components |
+
+---
+
+## Instructions
+
+Copy this template for each new component. Remove sections that do not apply. Add sections that are component-specific.
+
+---
+
+## [Component Name]
+
+**Purpose:** One sentence describing what this component does.
+
+**Design Goal:** One sentence describing the ideal user experience.
+
+**Tier:** [1 (Canonical) / 2 (Derived) / 3 (Domain)]
+
+**Inherits From:** [Parent component, or "—" if canonical]
+
+---
+
+### Token Dependencies
+
+| Token | Semantic Reference | Usage |
+|-------|-------------------|-------|
+| `component-token-1` | `semantic-token-1` | Description |
+| `component-token-2` | `semantic-token-2` | Description |
+
+---
+
+### Layout
+
+- Dimensions
+- Padding
+- Margins
+- Border radius
+- Internal structure
+
+---
+
+### Sizes
+
+| Size | Dimensions | Usage |
+|------|-----------|-------|
+| Small | [dimensions] | [context] |
+| Default | [dimensions] | [context] |
+| Large | [dimensions] | [context] |
+
+---
+
+### Variants
+
+| Variant | Visual | Usage |
+|---------|--------|-------|
+| Variant 1 | [description] | [context] |
+| Variant 2 | [description] | [context] |
+
+---
+
+### States
+
+| State | Visual | Motion |
+|-------|--------|--------|
+| Default | [description] | [animation] |
+| Hover | [description] | [animation] |
+| Focus | [description] | [animation] |
+| Active | [description] | [animation] |
+| Disabled | [description] | [animation] |
+| Loading | [description] | [animation] |
+| Error | [description] | [animation] |
+
+---
+
+### Keyboard
+
+| Key | Action |
+|-----|--------|
+| `Tab` | [behavior] |
+| `Enter` / `Space` | [behavior] |
+| `Escape` | [behavior] |
+| Arrow keys | [behavior] |
+
+---
+
+### Touch
+
+- Touch target size
+- Active state behavior
+- Gesture support (if any)
+
+---
+
+### Accessibility
+
+- ARIA roles
+- ARIA states
+- Screen reader behavior
+- Focus management
+
+---
+
+### Motion
+
+| Transition | Animation | Duration | Easing |
+|-----------|-----------|----------|--------|
+| [state change] | [description] | [duration] | [easing] |
+
+---
+
+### Acceptance Criteria
+
+- [ ] Criterion 1
+- [ ] Criterion 2
+- [ ] Criterion 3
+
+---
+
+### Anti-Patterns
+
+- ❌ [What not to do]
+- ❌ [What not to do]
+
+---
+
+### Related Components
+
+- [Component A] — [relationship]
+- [Component B] — [relationship]
+
+---
+
+### DDR References
+
+- DDR-XXX: [Decision rationale]