docs: set qwen as default provider with coder-model

- Mark Qwen OAuth as recommended default provider
- Update model reference to coder-model (qwen3-coder-plus)
- Add default provider setup instructions

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

skills/claw-setup/SKILL.md

@@ -19,9 +19,10 @@ End-to-end professional setup of AI Agent platforms with **25+ OpenCode-compatib
 │  ───────────────────────────────────────────────────            │
 │  • FREE: 2,000 requests/day, 60 req/min                        │
 │  • Works with: OpenClaw, NanoBot, PicoClaw, ZeroClaw           │
-│  • Model: Qwen3-Coder (optimized for coding)                   │
+│  • Model: coder-model (qwen3-coder-plus)                       │
 │  • Auth: Browser OAuth via qwen.ai                             │
 │  • Token refresh: Automatic (ZeroClaw) / Manual (others)       │
+│  • DEFAULT: Recommended as primary provider                    │
 │                                                                 │
 │  FEATURE 2: 25+ OpenCode-Compatible AI Providers                │
 │  ─────────────────────────────────────────────────              │
@@ -86,10 +87,25 @@ qwen --auth-type qwen-oauth -p "test"
 
 | Model | Best For |
 |-------|----------|
-| `qwen3-coder-plus` | Coding (recommended) |
+| `coder-model` (qwen3-coder-plus) | Coding (DEFAULT) |
 | `qwen3-coder-flash` | Fast coding |
 | `qwen-max` | Complex tasks |
 
+## Set as Default Provider
+
+```bash
+# ZeroClaw - Native qwen-oauth as default
+cat > ~/.zeroclaw/config.toml << EOF
+default_provider = "qwen-oauth"
+default_model = "coder-model"  # qwen3-coder-plus
+EOF
+
+# Other platforms - Set environment variables
+export OPENAI_API_KEY=$(cat ~/.qwen/oauth_creds.json | jq -r '.access_token')
+export OPENAI_BASE_URL="https://dashscope.aliyuncs.com/compatible-mode/v1"
+export OPENAI_MODEL="coder-model"  # qwen3-coder-plus
+```
+
 ## Import Methods
 
 ### ZeroClaw (Native Provider - Auto Token Refresh)