Integrate official Z.AI GLM Claude Code documentation

- Add Claude Code installation prerequisite (npm install)
- Update GLM configuration with official model mappings (glm-4.5-air, glm-4.7)
- Add version verification (recommended 2.0.14+)
- Include troubleshooting steps from Z.AI docs
- Add /status command verification
- Reference official Z.AI documentation: https://docs.z.ai/devpack/tool/claude
- Update README with proper GLM model configuration

README.md

@@ -130,6 +130,8 @@ echo "Hello, Claude!" | claude
 
 **Best for:** Development, testing, cost savings (up to 90% cheaper)
 
+**Official Documentation:** https://docs.z.ai/devpack/tool/claude
+
 #### 1.1 Get Your API Key
 
 ```bash
@@ -137,7 +139,7 @@ echo "Hello, Claude!" | claude
 # Create an account and get your GLM Coding Plan API key
 ```
 
-#### 1.2 Configure Claude Code
+#### 1.2 Configure Claude Code for GLM
 
 ```bash
 # Create/update your Claude Code settings
@@ -147,30 +149,45 @@ cat > ~/.claude/settings.json << 'EOF'
   "env": {
     "ANTHROPIC_AUTH_TOKEN": "your-zai-api-key-here",
     "ANTHROPIC_BASE_URL": "https://api.z.ai/api/anthropic",
-    "API_TIMEOUT_MS": "3000000"
+    "API_TIMEOUT_MS": "3000000",
+    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "glm-4.5-air",
+    "ANTHROPIC_DEFAULT_SONNET_MODEL": "glm-4.7",
+    "ANTHROPIC_DEFAULT_OPUS_MODEL": "glm-4.7"
   }
 }
 EOF
 ```
 
-#### 1.3 Install Claude Code
+**GLM Models Available:**
+- `glm-4.5-air` - Fast, efficient (Haiku equivalent)
+- `glm-4.7` - High quality (Sonnet/Opus equivalent)
+
+#### 1.3 Install Claude Code (if not installed)
 
 ```bash
-# Install Claude Code
+# Install Claude Code (requires Node.js 18+)
 npm install -g @anthropic-ai/claude-code
 
-# Or use curl
-curl -fsSL https://claude.ai/install.sh | sh
+# Verify version (recommended: 2.0.14+)
+claude --version
+
+# Upgrade if needed
+claude update
 ```
 
 #### 1.4 Verify Installation
 
 ```bash
-# Test Claude Code with Z.AI
-claude --version
+# Start Claude Code
+claude
 
-# Test connection
-echo "Test connection" | claude
+# Check model status (enter /status when prompted)
+/status
+
+# Troubleshooting:
+# - Close all Claude Code windows and reopen
+# - Or delete ~/.claude/settings.json and reconfigure
+# - Verify JSON format is correct
 ```
 
 ---