feat: unify hooks installs and webhooks

docs/cli/webhooks.md

@@ -0,0 +1,23 @@
+---
+summary: "CLI reference for `clawdbot webhooks` (webhook helpers + Gmail Pub/Sub)"
+read_when:
+  - You want to wire Gmail Pub/Sub events into Clawdbot
+  - You want webhook helper commands
+---
+
+# `clawdbot webhooks`
+
+Webhook helpers and integrations (Gmail Pub/Sub, webhook helpers).
+
+Related:
+- Webhooks: [Webhook](/automation/webhook)
+- Gmail Pub/Sub: [Gmail Pub/Sub](/automation/gmail-pubsub)
+
+## Gmail
+
+```bash
+clawdbot webhooks gmail setup --account you@example.com
+clawdbot webhooks gmail run
+```
+
+See [Gmail Pub/Sub documentation](/automation/gmail-pubsub) for details.