refactor(editor): rename block-std to std (#11250)

Closes: BS-2946

blocksuite/docs/api/@blocksuite/std/index/classes/LifeCycleWatcher.md

@@ -0,0 +1,81 @@
+[**BlockSuite API Documentation**](../../../../README.md)
+
+***
+
+[BlockSuite API Documentation](../../../../README.md) / [@blocksuite/std](../../README.md) / [index](../README.md) / LifeCycleWatcher
+
+# Class: `abstract` LifeCycleWatcher
+
+A life cycle watcher is an extension that watches the life cycle of the editor.
+It is used to perform actions when the editor is created, mounted, rendered, or unmounted.
+
+When creating a life cycle watcher, you must define a key that is unique to the watcher.
+The key is used to identify the watcher in the dependency injection container.
+```ts
+class MyLifeCycleWatcher extends LifeCycleWatcher {
+ static override readonly key = 'my-life-cycle-watcher';
+```
+
+In the life cycle watcher, the methods will be called in the following order:
+1. `created`: Called when the std is created.
+2. `rendered`: Called when `std.render` is called.
+3. `mounted`: Called when the editor host is mounted.
+4. `unmounted`: Called when the editor host is unmounted.
+
+## Extends
+
+- [`Extension`](../../../store/classes/Extension.md)
+
+## Extended by
+
+- [`CommandManager`](CommandManager.md)
+
+## Methods
+
+### created()
+
+> **created**(): `void`
+
+Called when std is created.
+
+#### Returns
+
+`void`
+
+***
+
+### mounted()
+
+> **mounted**(): `void`
+
+Called when editor host is mounted.
+Which means the editor host emit the `connectedCallback` lifecycle event.
+
+#### Returns
+
+`void`
+
+***
+
+### rendered()
+
+> **rendered**(): `void`
+
+Called when `std.render` is called.
+
+#### Returns
+
+`void`
+
+***
+
+### unmounted()
+
+> **unmounted**(): `void`
+
+Called when editor host is unmounted.
+Which means the editor host emit the `disconnectedCallback` lifecycle event.
+
+#### Returns
+
+`void`