docs: Sync all documentation with Claude Code February 2026 features

Update 23 files across all 10 tutorial directories and 7 reference
documents to match the latest Claude Code v2.1+ features and correct
outdated content including model names (4.5→4.6), permission modes,
hook events, CLI syntax, MCP config paths, plugin manifest format,
checkpoint commands, session management, and URLs. Add documentation
for new features: Auto Memory, Remote Control, Web Sessions, Desktop
App, Agent Teams, MCP OAuth, Task List, Sandboxing, and more.

resources.md

@@ -5,6 +5,19 @@
 
 # List of good resources
 
+## Official Documentation
+
+| Resource | Description | Link |
+|----------|-------------|------|
+| Claude Code Docs | Official Claude Code documentation | [docs.anthropic.com/en/docs/claude-code](https://docs.anthropic.com/en/docs/claude-code) |
+| Anthropic Docs | Full Anthropic documentation | [docs.anthropic.com](https://docs.anthropic.com) |
+| MCP Protocol | Model Context Protocol specification | [modelcontextprotocol.io](https://modelcontextprotocol.io) |
+| MCP Servers | Official MCP server implementations | [github.com/modelcontextprotocol/servers](https://github.com/modelcontextprotocol/servers) |
+| Anthropic Cookbook | Code examples and tutorials | [github.com/anthropics/anthropic-cookbook](https://github.com/anthropics/anthropic-cookbook) |
+| Claude Code Skills | Community skills repository | [github.com/anthropics/claude-code-skills](https://github.com/anthropics/claude-code-skills) |
+
+---
+
 ## Mastering Claude Code in 30 Minutes
 
 _Video_: https://www.youtube.com/watch?v=6eBSHbLKuN0
@@ -197,3 +210,20 @@ graph TD
 - Regularly clean up sessions, prune context, and remove completed worktrees to avoid clutter.
 
 These steps capture the core recommendations for smooth workflows with Claude Code in both new and existing codebases.
+
+---
+
+## New Features & Capabilities (February 2026)
+
+### Key Feature Resources
+
+| Feature | Description | Learn More |
+|---------|-------------|------------|
+| **Auto Memory** | Claude automatically learns and remembers your preferences across sessions | [Memory Guide](02-memory/) |
+| **Remote Control** | Programmatically control Claude Code sessions from external tools and scripts | [Advanced Features](09-advanced-features/) |
+| **Web Sessions** | Access Claude Code through browser-based interfaces for remote development | [CLI Reference](10-cli/) |
+| **Desktop App** | Native desktop application for Claude Code with enhanced UI | [Claude Code Docs](https://docs.anthropic.com/en/docs/claude-code) |
+| **Extended Thinking** | Deep reasoning toggle via `Alt+T`/`Option+T` or `MAX_THINKING_TOKENS` env var | [Advanced Features](09-advanced-features/) |
+| **Permission Modes** | Fine-grained control: default, acceptEdits, plan, dontAsk, bypassPermissions | [Advanced Features](09-advanced-features/) |
+| **7-Tier Memory** | Managed Policy, Project, Project Rules, User, User Rules, Local, Auto Memory | [Memory Guide](02-memory/) |
+| **Hook Events** | PreToolUse, PostToolUse, Stop, SubagentStop, SubagentStart, Notification, and more | [Hooks Guide](06-hooks/) |