refactor: use is_oauth flag instead of hardcoded provider name check

README.md

@@ -145,19 +145,19 @@ That's it! You have a working AI assistant in 2 minutes.
 
 ## 💬 Chat Apps
 
-Talk to your nanobot through Telegram, Discord, WhatsApp, Feishu, Mochat, DingTalk, Slack, Email, or QQ — anytime, anywhere.
+Connect nanobot to your favorite chat platform.
 
-| Channel | Setup |
-|---------|-------|
-| **Telegram** | Easy (just a token) |
-| **Discord** | Easy (bot token + intents) |
-| **WhatsApp** | Medium (scan QR) |
-| **Feishu** | Medium (app credentials) |
-| **Mochat** | Medium (claw token + websocket) |
-| **DingTalk** | Medium (app credentials) |
-| **Slack** | Medium (bot + app tokens) |
-| **Email** | Medium (IMAP/SMTP credentials) |
-| **QQ** | Easy (app credentials) |
+| Channel | What you need |
+|---------|---------------|
+| **Telegram** | Bot token from @BotFather |
+| **Discord** | Bot token + Message Content intent |
+| **WhatsApp** | QR code scan |
+| **Feishu** | App ID + App Secret |
+| **Mochat** | Claw token (auto-setup available) |
+| **DingTalk** | App Key + App Secret |
+| **Slack** | Bot token + App-Level token |
+| **Email** | IMAP/SMTP credentials |
+| **QQ** | App ID + App Secret |
 
 <details>
 <summary><b>Telegram</b> (Recommended)</summary>
@@ -588,6 +588,7 @@ Config file: `~/.nanobot/config.json`
 | `zhipu` | LLM (Zhipu GLM) | [open.bigmodel.cn](https://open.bigmodel.cn) |
 | `vllm` | LLM (local, any OpenAI-compatible server) | — |
 | `openai_codex` | LLM (Codex, OAuth) | `nanobot provider login openai-codex` |
+| `github_copilot` | LLM (GitHub Copilot, OAuth) | Requires [GitHub Copilot](https://github.com/features/copilot) subscription |
 
 <details>
 <summary><b>OpenAI Codex (OAuth)</b></summary>