refactor!: rename chat providers to channels

docs/start/getting-started.md

@@ -1,5 +1,5 @@
 ---
-summary: "Beginner guide: from zero to first message (wizard, auth, providers, pairing)"
+summary: "Beginner guide: from zero to first message (wizard, auth, channels, pairing)"
 read_when:
   - First time setup from zero
   - You want the fastest path from install → onboarding → first message
@@ -12,7 +12,7 @@ Goal: go from **zero** → **first working chat** (with sane defaults) as quickl
 Recommended path: use the **CLI onboarding wizard** (`clawdbot onboard`). It sets up:
 - model/auth (OAuth recommended)
 - gateway settings
-- providers (WhatsApp/Telegram/Discord/…)
+- channels (WhatsApp/Telegram/Discord/…)
 - pairing defaults (secure DMs)
 - workspace bootstrap + skills
 - optional background daemon
@@ -118,18 +118,18 @@ providers. If you use WhatsApp or Telegram, run the Gateway with **Node**.
 ### WhatsApp (QR login)
 
 ```bash
-clawdbot providers login
+clawdbot channels login
 ```
 
 Scan via WhatsApp → Settings → Linked Devices.
 
-WhatsApp doc: [WhatsApp](/providers/whatsapp)
+WhatsApp doc: [WhatsApp](/channels/whatsapp)
 
 ### Telegram / Discord / others
 
 The wizard can write tokens/config for you. If you prefer manual config, start with:
-- Telegram: [Telegram](/providers/telegram)
-- Discord: [Discord](/providers/discord)
+- Telegram: [Telegram](/channels/telegram)
+- Discord: [Discord](/channels/discord)
 
 **Telegram DM tip:** your first DM returns a pairing code. Approve it (see next step) or the bot won’t respond.