✨ Add documentation for future Game Master Explorer features

code/websites/pokedex.online/GAMEMASTER_EXPLORER_FUTURE.md

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+# Gamemaster Explorer - Future Features
+
+This document outlines planned features and enhancements for the Gamemaster Explorer.
+
+## Phase 2 Features
+
+### 1. Bookmarking System
+- **Description**: Allow users to bookmark specific lines or sections for quick access
+- **Implementation**: 
+  - Add bookmark button next to line numbers
+  - Store bookmarks in localStorage with file association
+  - Bookmark panel showing all saved bookmarks with quick navigation
+  - Export/import bookmark collections
+- **UI**: Star icon in line gutter, collapsible bookmark sidebar
+
+### 2. Regular Expression Search
+- **Description**: Advanced search using regex patterns
+- **Implementation**:
+  - Toggle switch between simple and regex search modes
+  - Validate regex input and show helpful error messages
+  - Highlight regex groups with different colors
+  - Preset regex patterns for common searches (emails, URLs, IDs)
+- **UI**: Regex mode checkbox, pattern library dropdown
+
+### 3. Syntax Error Detection
+- **Description**: Detect and highlight JSON syntax errors
+- **Implementation**:
+  - Parse JSON incrementally to detect errors
+  - Show error markers in gutter
+  - Hover over errors for detailed messages
+  - Auto-fix simple errors (trailing commas, quotes)
+- **UI**: Red error markers, error panel at bottom
+
+### 4. Mobile Gesture Support
+- **Description**: Touch-friendly gestures for mobile devices
+- **Implementation**:
+  - Swipe left/right to navigate search results
+  - Pinch to zoom text size
+  - Long-press for line selection
+  - Pull-to-refresh for file reload
+- **Detection**: Use pointer events API for better touch support
+
+### 5. Offline Support
+- **Description**: Cache files for offline viewing
+- **Implementation**:
+  - Service worker for caching
+  - IndexedDB for storing large files
+  - Offline indicator in UI
+  - Sync status when coming back online
+- **UI**: Offline badge, cache management panel
+
+### 6. Filter Presets
+- **Description**: Save and reuse common filter combinations
+- **Implementation**:
+  - Preset editor with name and description
+  - Save current filter state as preset
+  - Quick-access preset dropdown
+  - Share presets via URL or export
+- **Storage**: localStorage with preset manager UI
+
+## Phase 3 Features
+
+### 7. Diff Viewer
+- **Description**: Compare two versions of gamemaster files
+- **Implementation**:
+  - Side-by-side or unified diff view
+  - Highlight additions, deletions, changes
+  - Navigate between changes
+  - Export diff as patch file
+- **Library**: Consider using diff-match-patch
+
+### 8. Advanced Analytics
+- **Description**: Statistical analysis of gamemaster data
+- **Implementation**:
+  - Property distribution charts
+  - Data type analysis
+  - Value frequency reports
+  - Array size statistics
+- **UI**: Analytics dashboard with charts (Chart.js)
+
+### 9. Collaborative Features
+- **Description**: Share annotations and bookmarks with team
+- **Implementation**:
+  - Share URLs with annotations
+  - Comment system on lines
+  - Collaborative bookmark collections
+  - Real-time collaboration (future: WebSockets)
+- **Backend**: Requires API for storing shared data
+
+### 10. Custom Themes
+- **Description**: User-customizable syntax highlighting themes
+- **Implementation**:
+  - Theme editor with live preview
+  - Import popular VS Code themes
+  - Share themes with community
+  - Per-language theme customization
+- **Storage**: Theme files in localStorage or cloud
+
+## Performance Optimizations
+
+### 1. Web Workers
+- Move search and filtering to background threads
+- Prevent UI blocking during heavy operations
+- Progress reporting from workers
+
+### 2. Incremental Rendering
+- Render only visible viewport initially
+- Stream large files in chunks
+- Progressive enhancement of features
+
+### 3. Smart Caching
+- Cache parsed JSON structures
+- Memoize expensive computations
+- Invalidate cache intelligently
+
+## Accessibility Improvements
+
+### 1. Screen Reader Support
+- Proper ARIA labels
+- Keyboard navigation announcements
+- Alternative text for visualizations
+
+### 2. Keyboard Navigation
+- Additional shortcuts for power users
+- Customizable keybindings
+- Keyboard shortcut cheat sheet
+
+### 3. High Contrast Mode
+- Ensure readability in high contrast mode
+- Configurable contrast ratios
+- Support for OS-level preferences
+
+## Integration Features
+
+### 1. Export Formats
+- CSV export for tabular data
+- Markdown tables
+- HTML with embedded styles
+- PDF generation
+
+### 2. Import Data
+- Upload custom JSON files
+- Paste JSON directly
+- Import from URLs
+- Drag-and-drop file upload
+
+### 3. API Integration
+- Direct API calls to PokeMiners
+- Auto-refresh on new versions
+- Webhook notifications
+- Version history tracking
+
+## UI/UX Enhancements
+
+### 1. Split View
+- View multiple files simultaneously
+- Synchronized scrolling
+- Quick file switching
+- Draggable split divider
+
+### 2. Minimap
+- VS Code-style minimap for navigation
+- Highlight search results in minimap
+- Click to jump to location
+- Configurable minimap size
+
+### 3. Command Palette
+- VS Code-style command palette (Ctrl+Shift+P)
+- Quick access to all features
+- Fuzzy search for commands
+- Recent commands history
+
+### 4. Breadcrumbs Navigation
+- JSON path breadcrumbs at top
+- Click to collapse/expand sections
+- Copy path to clipboard
+- Navigate hierarchy easily
+
+## Developer Features
+
+### 1. API Playground
+- Test JSON transformations
+- JMESPath query builder
+- JSONPath tester
+- GraphQL query generator
+
+### 2. Schema Validation
+- Validate against JSON Schema
+- Auto-generate schemas
+- Schema explorer
+- Validation error reporting
+
+### 3. Query Builder
+- Visual query builder for complex filters
+- Save and reuse queries
+- Query optimization suggestions
+- Explain query execution
+
+## Community Features
+
+### 1. Share Discoveries
+- Share interesting data findings
+- Community annotation database
+- Voting on useful bookmarks
+- Discussion threads
+
+### 2. Plugin System
+- Allow community plugins
+- Plugin marketplace
+- Safe sandboxed execution
+- Plugin API documentation
+
+## Priority Matrix
+
+| Feature | Impact | Effort | Priority |
+|---------|--------|--------|----------|
+| Bookmarking | High | Low | ⭐⭐⭐ |
+| Regex Search | High | Medium | ⭐⭐⭐ |
+| Mobile Gestures | Medium | High | ⭐⭐ |
+| Offline Support | Medium | High | ⭐⭐ |
+| Diff Viewer | High | High | ⭐⭐⭐ |
+| Custom Themes | Low | Medium | ⭐ |
+| Split View | Medium | Medium | ⭐⭐ |
+| Command Palette | High | Low | ⭐⭐⭐ |
+| Schema Validation | Medium | High | ⭐⭐ |
+
+## Implementation Notes
+
+- Start with high-priority, low-effort features
+- Test thoroughly on mobile devices
+- Consider bundle size impact
+- Maintain backwards compatibility
+- Document all new features
+- Add telemetry (opt-in) to guide future development
+
+## User Feedback Integration
+
+Track feature requests from users and adjust priorities based on:
+- Usage analytics
+- Support tickets
+- Community polls
+- Performance metrics
+
+## Technical Debt
+
+Items to address before adding more features:
+- Unit tests for all utilities
+- E2E tests for critical paths
+- Performance benchmarking
+- Security audit
+- Accessibility audit
+- Bundle size optimization