feat(docs): add preview and sharing documentation, including local preview mode and guide sharing workflow

Author: Gu-ZT

src/en/posts/docs/ageratum/01-getting-started.md

@@ -87,10 +87,21 @@ found.
 /ageratum <namespace>               # Opens <namespace>:ageratum/<lang>/index.md
 /ageratum <namespace> <file>        # Opens <namespace>:ageratum/<lang>/<file>.md
 /ageratum <namespace> <dir>/<file>  # Opens a file in a subdirectory
+/ageratum <namespace> <file> <anchor> # Opens and jumps to an anchor
 ```
 
 > Both arguments support Tab completion, listing namespaces and files that actually exist in the resource pack.
 
+### Preview Command (Optional)
+
+If `enablePreview = true` is set in `ageratum-client.toml`, you can run:
+
+```
+/ageratum preview
+```
+
+This reads `<minecraft_dir>/<previewPath>/index.md` (default: `ageratum_preview/index.md`) and is useful for live documentation iteration.
+
 ---
 
 ## 4. Open from the Server Side

src/en/posts/docs/ageratum/03-markdown-syntax.md

@@ -330,7 +330,7 @@ Supported types:
 ```markdown
 <click type="OPEN_URL" data="https://example.com">Click to open</click>
 <click type="COPY_TO_CLIPBOARD" data="Text to copy">Click to copy</click>
-<click type="SUGGEST_COMMAND" data="/say hello">Click to suggest command</click>
+<click type="OPEN_FILE" data="C:/path/to/file.txt">Click to open file</click>
 <click type="RUN_COMMAND" data="/ageratum ageratum">Click to run command</click>
 ```
 
@@ -340,7 +340,7 @@ Supported types:
 |---------------------|---------------|---------------------|
 | `OPEN_URL`          | Full URL      | Open a web page     |
 | `COPY_TO_CLIPBOARD` | Any text      | Copy to clipboard   |
-| `SUGGEST_COMMAND`   | Command text  | Fill into chat box  |
+| `OPEN_FILE`         | File path     | Open a local file   |
 | `RUN_COMMAND`       | Command text  | Execute immediately |
 
 ### Combining Styles