feat: migrate reusable application feature components to JSON (Phase 9)

Migrated 14 reusable feature components to JSON architecture:

Error Handling:
- ErrorPanelHeader: header with action buttons and badges
- ErrorPanelEmptyState: conditional empty state rendering

PWA Settings:
- PWAUpdateSection: update notification card
- PWACacheSection: cache management settings

Conflict Resolution:
- ConflictResolutionStats: statistics cards grid

Feature Components:
- HowItWorksCard: instructional step cards
- SearchResults: search results display with categories
- SearchEmptyState: empty search state

Comprehensive Demo:
- ComprehensiveDemoHeader: gradient title header
- ComprehensiveDemoStatsRow: task statistics cards

Reusable Patterns:
- ConfigCard: configuration input card
- StatusCard: status indicator card
- InfoSection: key-value information display
- ListHeader: list header with count badge

Changes:
- Created 14 JSON definitions in src/components/json-definitions/
- Created 14 TypeScript interfaces in src/lib/json-ui/interfaces/
- Exported all components from json-components.ts
- Updated json-components-registry.json (373 total, 223 JSON-compatible)
- Updated json-ui-component-types.ts

Features extracted from:
- error-panel, pwa-settings, conflict-resolution, data-binding-designer
- global-search, comprehensive-demo, project-settings

Build status: PASS ✓

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/lib/json-ui/interfaces/index.ts

@@ -162,6 +162,22 @@ export * from './status-badge'
 export * from './text'
 export * from './tree-icon'
 
+// Phase 9: Reusable feature component interfaces
+export * from './error-panel-header'
+export * from './error-panel-empty-state'
+export * from './pwa-update-section'
+export * from './pwa-cache-section'
+export * from './conflict-resolution-stats'
+export * from './how-it-works-card'
+export * from './search-results'
+export * from './search-empty-state'
+export * from './comprehensive-demo-header'
+export * from './comprehensive-demo-stats-row'
+export * from './config-card'
+export * from './status-card'
+export * from './info-section'
+export * from './list-header'
+
 // Shadcn/ui wrapper interfaces
 export * from './shadcn-button'
 export * from './shadcn-badge'

src/lib/json-ui/json-components.ts

@@ -197,6 +197,20 @@ import type {
   ShadcnTooltipProps,
   ShadcnTooltipTriggerProps,
   ShadcnTooltipContentProps,
+  ErrorPanelHeaderProps,
+  ErrorPanelEmptyStateProps,
+  PWAUpdateSectionProps,
+  PWACacheSectionProps,
+  ConflictResolutionStatsProps,
+  HowItWorksCardProps,
+  SearchResultsProps,
+  SearchEmptyStateProps,
+  ComprehensiveDemoHeaderProps,
+  ComprehensiveDemoStatsRowProps,
+  ConfigCardProps,
+  StatusCardProps,
+  InfoSectionProps,
+  ListHeaderProps,
 } from './interfaces'
 
 // Import JSON definitions
@@ -391,6 +405,20 @@ import shadcnCheckboxDef from '@/components/json-definitions/shadcn-checkbox.jso
 import shadcnTooltipDef from '@/components/json-definitions/shadcn-tooltip.json'
 import shadcnTooltipTriggerDef from '@/components/json-definitions/shadcn-tooltip-trigger.json'
 import shadcnTooltipContentDef from '@/components/json-definitions/shadcn-tooltip-content.json'
+import errorPanelHeaderDef from '@/components/json-definitions/error-panel-header.json'
+import errorPanelEmptyStateDef from '@/components/json-definitions/error-panel-empty-state.json'
+import pwaUpdateSectionDef from '@/components/json-definitions/pwa-update-section.json'
+import pwaCacheSectionDef from '@/components/json-definitions/pwa-cache-section.json'
+import conflictResolutionStatsDef from '@/components/json-definitions/conflict-resolution-stats.json'
+import howItWorksCardDef from '@/components/json-definitions/how-it-works-card.json'
+import searchResultsDef from '@/components/json-definitions/search-results.json'
+import searchEmptyStateDef from '@/components/json-definitions/search-empty-state.json'
+import comprehensiveDemoHeaderDef from '@/components/json-definitions/comprehensive-demo-header.json'
+import comprehensiveDemoStatsRowDef from '@/components/json-definitions/comprehensive-demo-stats-row.json'
+import configCardDef from '@/components/json-definitions/config-card.json'
+import statusCardDef from '@/components/json-definitions/status-card.json'
+import infoSectionDef from '@/components/json-definitions/info-section.json'
+import listHeaderDef from '@/components/json-definitions/list-header.json'
 
 // Create pure JSON components (no hooks)
 export const BindingIndicator = createJsonComponent<BindingIndicatorProps>(bindingIndicatorDef)
@@ -667,6 +695,22 @@ export const NavigationMenu = createJsonComponentWithHooks<NavigationMenuProps>(
 
 export const TreeListPanel = createJsonComponent<TreeListPanelProps>(treeListPanelDef)
 
+// Phase 9: Reusable feature components
+export const ErrorPanelHeader = createJsonComponent<ErrorPanelHeaderProps>(errorPanelHeaderDef)
+export const ErrorPanelEmptyState = createJsonComponent<ErrorPanelEmptyStateProps>(errorPanelEmptyStateDef)
+export const PWAUpdateSection = createJsonComponent<PWAUpdateSectionProps>(pwaUpdateSectionDef)
+export const PWACacheSection = createJsonComponent<PWACacheSectionProps>(pwaCacheSectionDef)
+export const ConflictResolutionStats = createJsonComponent<ConflictResolutionStatsProps>(conflictResolutionStatsDef)
+export const HowItWorksCard = createJsonComponent<HowItWorksCardProps>(howItWorksCardDef)
+export const SearchResults = createJsonComponent<SearchResultsProps>(searchResultsDef)
+export const SearchEmptyState = createJsonComponent<SearchEmptyStateProps>(searchEmptyStateDef)
+export const ComprehensiveDemoHeader = createJsonComponent<ComprehensiveDemoHeaderProps>(comprehensiveDemoHeaderDef)
+export const ComprehensiveDemoStatsRow = createJsonComponent<ComprehensiveDemoStatsRowProps>(comprehensiveDemoStatsRowDef)
+export const ConfigCard = createJsonComponent<ConfigCardProps>(configCardDef)
+export const StatusCard = createJsonComponent<StatusCardProps>(statusCardDef)
+export const InfoSection = createJsonComponent<InfoSectionProps>(infoSectionDef)
+export const ListHeader = createJsonComponent<ListHeaderProps>(listHeaderDef)
+
 // Additional deleted components now available as JSON-based exports
 export const ColorSwatch = createJsonComponent<ColorSwatchProps>(colorSwatchDef)
 export const ComponentTreeNode = createJsonComponent<ComponentTreeNodeProps>(componentTreeNodeDef)

src/types/json-ui-component-types.ts

@@ -344,6 +344,20 @@ export const jsonUIComponentTypes = [
   "toggleVariants",
   "tooltip",
   "update",
+  "ErrorPanelHeader",
+  "ErrorPanelEmptyState",
+  "PWAUpdateSection",
+  "PWACacheSection",
+  "ConflictResolutionStats",
+  "HowItWorksCard",
+  "SearchResults",
+  "SearchEmptyState",
+  "ComprehensiveDemoHeader",
+  "ComprehensiveDemoStatsRow",
+  "ConfigCard",
+  "StatusCard",
+  "InfoSection",
+  "ListHeader",
 ] as const
 
 export type JSONUIComponentType = typeof jsonUIComponentTypes[number]