Implement tag/category filtering #360
Description
Tag System
Primary Categories:
- AI
- Security
- Architecture
- Development
Implementation
- Tag buttons/pills at top of blog page
- Filter posts by selected tag
- Show post count per tag
- "All Posts" option to clear filter
Acceptance Criteria
- Tags visible on blog index
- Clicking tag filters posts
- URL updates with filter (optional)
- Clear filter option available
- Mobile responsive
Estimated Time: 2 hours