[STABLE] Add development framework documentation

ROADMAP.md

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+# WP Allstars Plugin Development Roadmap
+
+This document outlines features from later versions that we plan to integrate into our stable development branch. The goal is to incrementally implement these features in a stable manner, without introducing critical errors.
+
+## Feature Backlog
+
+| Feature | Source Version | Priority | Complexity | Risk | Status |
+|---------|----------------|----------|------------|------|--------|
+| Multisite Category | v0.2.6 | High | Low | Low | ✅ Implemented in v0.2.3-stable |
+| Sync Guard | v0.2.6-fix | High | Low | Low | 🔄 To be implemented |
+| More Robust File Loading | v0.2.6-fix | High | Low | Low | ✅ Implemented in v0.2.3-stable |
+| Enhanced Admin UI | v0.2.4+ | Medium | Medium | Medium | 🔄 To be implemented |
+| Plugin Dashboard | v0.2.6-fix | Medium | Medium | Medium | 🔄 To be implemented |
+| New Category Pages | v0.2.4+ | Medium | Low | Low | 🔄 To be implemented |
+
+## Implementation Strategy
+
+### Multisite Category with Network Plugin Auditor
+- **Description**: Add a "Multisite" filter after Advanced and include network-plugin-auditor
+- **Why it failed before**: Didn't properly update all required files for the feature
+- **Implementation plan**: Add to free-plugins.php and update class-free-plugins-manager.php to display the category correctly
+- **Testing criteria**: Verify category appears in UI and plugin can be installed
+
+### Sync Guard
+- **Description**: Prevent plugin loading during rsync operations to avoid partial file loading
+- **Why it failed before**: Added to wrong location, dependent on missing files
+- **Implementation plan**: 
+  1. Create a simpler version of the sync guard
+  2. Update post-commit hook to handle sync operations better
+  3. Use file flag to signal when sync is in progress
+- **Testing criteria**: Verify plugin doesn't attempt to load during sync operations
+
+### Enhanced Admin UI
+- **Description**: Improve the admin interface with better styling and more intuitive navigation
+- **Why it failed before**: Too many changes at once without proper testing
+- **Implementation plan**:
+  1. Small, incremental UI improvements
+  2. Focus on one component at a time
+  3. Thorough testing after each change
+- **Testing criteria**: UI changes shouldn't affect functionality, should be responsive
+
+## Development Order
+
+The suggested implementation order is:
+
+1. Sync Guard 
+2. Enhanced Admin UI (component by component)
+3. Plugin Dashboard improvements
+4. New Category Pages
+
+Each feature should be developed in its own branch and only merged after thorough testing.