docs: add version 1.1.0 and comprehensive changelog

Add version badge and detailed changelog for v1.1.0 release documenting:
- HTTP polling system for terminal output
- Terminal type selection (Standard Shell vs Claude Code CLI)
- Debug panel improvements
- Bug fixes for WebSocket closure issues
- Technical details for all modified files
- Security and compatibility notes

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

README.md

@@ -6,6 +6,80 @@
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+[![Version](https://img.shields.io/badge/Version-1.1.0-brightgreen)](https://github.rommark.dev/admin/ClaudeCLI-Web)
+
+---
+
+## Version History
+
+### v1.1.0 (2026-01-19)
+
+**🚀 Major Feature: HTTP Polling for Terminal Output**
+
+This release addresses critical WebSocket connectivity issues in nginx reverse proxy configurations by implementing a robust HTTP polling mechanism for terminal output.
+
+#### Changes
+
+**✨ New Features**
+- **HTTP Polling System** - Terminal output now uses HTTP polling instead of WebSocket for reliable data delivery
+  - Server buffers PTY output in memory with automatic cleanup
+  - Frontend polls every 100ms for new output entries
+  - Monotonically increasing index for efficient data retrieval
+  - Automatic cleanup of old output (5 minutes retention)
+
+**🔧 Improvements**
+- **Terminal Type Selection** - Added dropdown to choose between:
+  - Standard Shell (bash/zsh)
+  - Claude Code CLI (auto-launches with `--dangerously-skip-permissions`)
+- **Debug Panel** - Always-visible debug panel for troubleshooting terminal issues
+- **HTTP POST Input** - Commands sent via HTTP POST to bypass WebSocket send failures
+- **Terminal Resize** - HTTP-based resize endpoint for terminal dimensions
+
+**🐛 Bug Fixes**
+- Fixed WebSocket closure with code 1006 (abnormal closure) in nginx configurations
+- Fixed terminal command execution failing silently
+- Fixed race condition in `switchToTerminal()` method
+- Removed stabilization delays that caused WebSocket issues
+- Fixed terminal type selector not appearing in modal
+
+**📝 Technical Details**
+- `services/terminal-service.js`:
+  - Added `bufferOutput()` method for capturing PTY data
+  - Added `getTerminalOutput()` for HTTP polling endpoint
+  - Added `resizeTerminal()` for HTTP resize handling
+  - Maintains WebSocket compatibility for legacy support
+
+- `server.js`:
+  - `GET /claude/api/terminals/:id/output` - Poll for new output
+  - `POST /claude/api/terminals/:id/input` - Send command input
+  - `POST /claude/api/terminals/:id/resize` - Resize terminal
+
+- `public/claude-ide/terminal.js`:
+  - Added `startPolling()` - 100ms interval polling
+  - Added `stopPolling()` - Clean polling termination
+  - Added `sendTerminalInput()` - HTTP POST for commands
+  - Added `sendTerminalResize()` - HTTP POST for resize
+  - Removed dependency on WebSocket for output display
+
+**🔒 Security**
+- All polling endpoints require authentication
+- Output buffer size limited to 10,000 entries per terminal
+- Automatic cleanup prevents memory exhaustion
+
+**⚙️ Compatibility**
+- Maintains backward compatibility with WebSocket connections
+- Works seamlessly with nginx reverse proxy
+- No configuration changes required
+
+---
+
+### v1.0.0 (Initial Release)
+
+- Session management with real-time status tracking
+- Project organization with smart suggestions
+- WebSocket-based terminal integration
+- XML tag system for file operations
+- Obsidian vault integration
 
 ---