feat: add zalouser channel + directory CLI (#1032) (thanks @suminhthanh)

- Unified UX: channels login + message send; no plugin-specific top-level command\n- Added generic directory CLI for channel identity/groups\n- Docs: channel + plugin pages

docs/plugins/zalouser.md

@@ -0,0 +1,75 @@
+---
+summary: "Zalo Personal plugin: QR login + messaging via zca-cli (plugin install + channel config + CLI + tool)"
+read_when:
+  - You want Zalo Personal (unofficial) support in Clawdbot
+  - You are configuring or developing the zalouser plugin
+---
+
+# Zalo Personal (plugin)
+
+Zalo Personal support for Clawdbot via a plugin, using `zca-cli` to automate a normal Zalo user account.
+
+> **Warning:** Unofficial automation may lead to account suspension/ban. Use at your own risk.
+
+## Naming
+Channel id is `zalouser` to make it explicit this automates a **personal Zalo user account** (unofficial). We keep `zalo` reserved for a potential future official Zalo API integration.
+
+## Where it runs
+This plugin runs **inside the Gateway process**.
+
+If you use a remote Gateway, install/configure it on the **machine running the Gateway**, then restart the Gateway.
+
+## Install
+
+### Option A: install from npm
+
+```bash
+clawdbot plugins install @clawdbot/zalouser
+```
+
+Restart the Gateway afterwards.
+
+### Option B: install from a local folder (dev)
+
+```bash
+clawdbot plugins install ./extensions/zalouser
+cd ./extensions/zalouser && pnpm install
+```
+
+Restart the Gateway afterwards.
+
+## Prerequisite: zca-cli
+The Gateway machine must have `zca` on `PATH`:
+
+```bash
+zca --version
+```
+
+## Config
+Channel config lives under `channels.zalouser` (not `plugins.entries.*`):
+
+```json5
+{
+  channels: {
+    zalouser: {
+      enabled: true,
+      dmPolicy: "pairing"
+    }
+  }
+}
+```
+
+## CLI
+
+```bash
+clawdbot channels login --channel zalouser
+clawdbot channels logout --channel zalouser
+clawdbot channels status --probe
+clawdbot message send --channel zalouser --to <threadId> --message "Hello from Clawdbot"
+clawdbot directory peers list --channel zalouser --query "name"
+```
+
+## Agent tool
+Tool name: `zalouser`
+
+Actions: `send`, `image`, `link`, `friends`, `groups`, `me`, `status`