Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

docs/services/lark.md

@@ -0,0 +1,46 @@
+# Lark
+
+Send notifications to Lark using a custom bot webhook.
+
+## URL Format
+
+!!! info ""
+    lark://__`host`__/__`token`__?secret=__`secret`__&title=__`title`__&link=__`url`__
+
+--8<-- "docs/services/lark/config.md"
+
+- `host`: The bot API host (`open.larksuite.com` for Lark, `open.feishu.cn` for Feishu).
+- `token`: The bot webhook token (required).
+- `secret`: Optional bot secret for signed requests.
+- `title`: Optional message title (switches to post format if set).
+- `link`: Optional URL to include as a clickable link in the message.
+
+### Example URL
+
+```url
+lark://open.larksuite.com/abc123?secret=xyz789&title=Alert&link=https://example.com
+```
+
+## Create a Custom Bot in Lark
+
+Official Documentation: [Custom Bot Guide](https://open.larksuite.com/document/client-docs/bot-v3/add-custom-bot)
+
+1. __Invite the Custom Bot to a Group__:  
+   a. Open the target group, click `More` in the upper-right corner, and then select `Settings`.  
+   b. In the `Settings` panel, click `Group Bot`.  
+   c. Click `Add a Bot` under `Group Bot`.  
+   d. In the `Add Bot` dialog, locate `Custom Bot` and select it.  
+   e. Set the bot’s name and description, then click `Add`.  
+   f. Copy the webhook address and click `Finish`.  
+
+2. __Get Host and Token__:
+   - For __Lark__: Use `host = open.larksuite.com`.  
+   - For __Feishu__: Use `host = open.feishu.cn`.  
+   - The `token` is the last segment of the webhook URL.  
+    For example, in `https://open.larksuite.com/open-apis/bot/v2/hook/xxxxxxxxxxxxxxxxx`, the token is `xxxxxxxxxxxxxxxxx`.
+
+3. __Get Secret (Optional)__:  
+   a. In group settings, open the bot list, find your custom bot, and select it to access its configuration.  
+   b. Under `Security Settings`, enable `Signature Verification`.  
+   c. Click `Copy` to save the secret.  
+   d. Click `Save` to apply the changes.