* docs: Update Claude Code documentation to include Pro plans alongside Max plans
* Add JetBrains installation documentation
- Create comprehensive installation guide for JetBrains IDEs
- Include both marketplace and manual installation methods
- Document supported IDEs and key differences from VSCode
- Add alpha status note and terminal integration limitations
- Update docs.json navigation to include new page
* Add images to JetBrains installation documentation
- Add demo GIF showing Cline in action in JetBrains IDE
- Add screenshot of JetBrains marketplace download page
- Add screenshot of Install Plugin from Disk dialog
- Add screenshot of file selection dialog with zip file
- Complete visual walkthrough of installation process
* Update JetBrains demo to high-quality GIF
- Replace jetbrains-demo.gif with jetbrains-demo-hifi.gif
- Improved visual quality for better user experience
* Add JetBrains settings dialog screenshot
- Add screenshot showing the main settings dialog
- Provides visual guidance for accessing IDE settings
- Complete visual walkthrough now includes 5 screenshots
* Add JetBrains logo and finalize documentation
- Add JetBrains logo at top of page with proper styling
- Update content with user revisions (BYOK note, streamlined structure)
- Complete visual installation walkthrough with 5 images
- Ready for PR review