docs: clarify ZeroClaw native qwen-oauth vs OpenAI-compatible import

- Document ZeroClaw's native qwen-oauth provider with auto token refresh
- Explain two import methods: Native vs OpenAI-compatible
- Add OAuth credentials structure documentation
- Add comparison table showing feature differences
- Update platform table to show ZeroClaw has Native (not Import) OAuth support

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/claw-setup/README.md

@@ -78,7 +78,7 @@
 | **OpenClaw** | TypeScript | >1GB | ~500s | ✅ Import | ✅ | Full-featured, 1700+ plugins |
 | **NanoBot** | Python | ~100MB | ~30s | ✅ Import | ✅ | Research, Python devs |
 | **PicoClaw** | Go | <10MB | ~1s | ✅ Import | ✅ | Embedded, $10 hardware |
-| **ZeroClaw** | Rust | <5MB | <10ms | ✅ Import | ✅ | Maximum performance |
+| **ZeroClaw** | Rust | <5MB | <10ms | ✅ Native | ✅ | Maximum performance |
 | **NanoClaw** | TypeScript | ~50MB | ~5s | ✅ Import | ✅ | WhatsApp integration |
 
 ### Platform Selection Guide
@@ -173,19 +173,82 @@ CONFIG
 nanobot gateway
 ```
 
-#### ZeroClaw + FREE Qwen
+#### ZeroClaw + FREE Qwen (NATIVE Provider)
 ```bash
 # Install ZeroClaw
 wget https://github.com/zeroclaw-labs/zeroclaw/releases/latest/zeroclaw-linux-amd64
 chmod +x zeroclaw-linux-amd64 && sudo mv zeroclaw-linux-amd64 /usr/local/bin/zeroclaw
 
-# Import Qwen OAuth
+# ZeroClaw has NATIVE qwen-oauth provider support!
-export OPENAI_API_KEY=$(cat ~/.qwen/oauth-token.json | jq -r '.access_token')
+# First, get OAuth credentials via Qwen Code:
-export OPENAI_MODEL="qwen3-coder-plus"
+qwen && /auth  # Select Qwen OAuth → creates ~/.qwen/oauth_creds.json
 
+# Configure ZeroClaw to use native qwen-oauth provider
+cat > ~/.zeroclaw/config.toml << CONFIG
+default_provider = "qwen-oauth"
+default_model = "qwen3-coder-plus"
+default_temperature = 0.7
+CONFIG
+
+# ZeroClaw reads ~/.qwen/oauth_creds.json directly with auto token refresh!
 zeroclaw gateway
 ```
 
+### Understanding Qwen OAuth Import Methods
+
+```
+┌─────────────────────────────────────────────────────────────────────────────┐
+│                    QWEN OAUTH IMPORT METHODS                                 │
+├─────────────────────────────────────────────────────────────────────────────┤
+│                                                                             │
+│  METHOD 1: Native Provider (ZeroClaw ONLY)                                 │
+│  ─────────────────────────────────────────────────────                      │
+│  • ZeroClaw has built-in "qwen-oauth" provider                             │
+│  • Reads ~/.qwen/oauth_creds.json directly                                 │
+│  • Automatic token refresh using refresh_token                             │
+│  • Tracks expiry_date and refreshes when needed                            │
+│  • Configuration: default_provider = "qwen-oauth"                          │
+│                                                                             │
+│  METHOD 2: OpenAI-Compatible (All Other Platforms)                         │
+│  ─────────────────────────────────────────────────────                      │
+│  • Treats Qwen API as OpenAI-compatible endpoint                           │
+│  • Extract access_token and use as OPENAI_API_KEY                          │
+│  • Set OPENAI_BASE_URL=https://api.qwen.ai/v1                              │
+│  • Manual re-export needed when token expires                              │
+│                                                                             │
+│  COMPARISON:                                                                │
+│  ┌─────────────────┬────────────────┬─────────────────────┐                │
+│  │ Feature         │ Native         │ OpenAI-Compatible   │                │
+│  ├─────────────────┼────────────────┼─────────────────────┤                │
+│  │ Token Refresh   │ ✅ Automatic   │ ❌ Manual           │                │
+│  │ Token Expiry    │ ✅ Handled     │ ⚠️  Re-export needed│                │
+│  │ Platforms       │ ZeroClaw only  │ All others          │                │
+│  │ Config File     │ ~/.qwen/oauth_creds.json │ env vars │                │
+│  └─────────────────┴────────────────┴─────────────────────┘                │
+│                                                                             │
+└─────────────────────────────────────────────────────────────────────────────┘
+```
+
+### OAuth Credentials Structure
+
+Qwen Code stores OAuth credentials in `~/.qwen/oauth_creds.json`:
+
+```json
+{
+  "access_token": "pIFwnvSC3fQPG0i5waDbozvUNEWE4w9x...",
+  "refresh_token": "9Fm_Ob-c8_WAT_3QvgGwVGfgoNfAdP...",
+  "token_type": "Bearer",
+  "resource_url": "portal.qwen.ai",
+  "expiry_date": 1771774796531
+}
+```
+
+| Field | Purpose |
+|-------|---------|
+| `access_token` | Used for API authentication |
+| `refresh_token` | Used to get new access_token when expired |
+| `expiry_date` | Unix timestamp when access_token expires |
+
 ---
 
 ## 🤖 FEATURE 2: 25+ AI Providers