fix(write): split tags on fullwidth punctuation

The tag splitter matched ASCII ',' and ';' twice instead of the
fullwidth '，' (U+FF0C) / '；' (U+FF1B) the comment intended, so tags
separated by fullwidth punctuation (common under Chinese IMEs)
collapsed into a single tag.

Also resolves the compiler warnings surfaced in the same build:
- tiptap_bridge: drop unused Readable/Writable imports and
  EditorInstance/TiptapEditorModule re-exports
- tiptap_bridge: migrate deprecated RequestInit::method/body/
  credentials builders to set_method/set_body/set_credentials
- write: remove redundant `mut` on Dioxus signals that are only
  read/set, never reassigned
- image_viewer: gate the server-only `mut` reassignment so the WASM
  build (which strips the cfg block) doesn't warn

src/components/image_viewer.rs

@@ -73,6 +73,9 @@ pub fn ImageViewer(
     // 计算 aspect-ratio：SSR 时读图片真实尺寸。WASM 端不读（--ar 已在 SSR 写入 HTML）。
     // 非 /uploads/ 的外链图或读不到尺寸时不设 --ar。
     let ar_style = {
+        // `mut` 仅 server 构建需要：WASM 构建剥离 #[cfg(feature = "server")] 块后，
+        // s 从未被重新赋值，故对 WASM 抑制 unused_mut。
+        #[cfg_attr(not(feature = "server"), allow(unused_mut))]
         let mut s = String::new();
         #[cfg(feature = "server")]
         {

src/pages/admin/write.rs

@@ -78,11 +78,11 @@ fn write_editor(post_id: Option<i32>) -> Element {
     let mut editor: Signal<Option<EditorHandle>> = use_signal(|| None);
     // WASM 前端：编辑器就绪标志（onReady 回调驱动，替代 __tiptap_ready 轮询）。
     #[cfg(target_arch = "wasm32")]
-    let mut ready = use_signal(|| false);
+    let ready = use_signal(|| false);
 
     // 上传状态：当前进行中计数（保存拦截）+ 顶部失败提示堆叠（用户手动关闭）
-    let mut uploads_in_flight = use_signal(UploadsInFlight::default);
-    let mut upload_errors: Signal<Vec<UploadErrorEntry>> = use_signal(Vec::new);
+    let uploads_in_flight = use_signal(UploadsInFlight::default);
+    let upload_errors: Signal<Vec<UploadErrorEntry>> = use_signal(Vec::new);
 
     // 编辑模式：文章数据加载完成后，将字段回填到表单信号。
     use_effect(move || {
@@ -261,7 +261,7 @@ fn write_editor(post_id: Option<i32>) -> Element {
             // 将逗号分隔的标签字符串转换为列表。
             // 同时支持半角/全角逗号与分号，避免中文输入法下的全角标点被误并入单个标签。
             let tags_list: Vec<String> = tags()
-                .split(|c| matches!(c, ',' | ',' | ';' | ';'))
+                .split(|c| matches!(c, ',' | '，' | ';' | '；'))
                 .map(|t| t.trim().to_string())
                 .filter(|t| !t.is_empty())
                 .collect();

src/tiptap_bridge.rs

@@ -29,8 +29,8 @@ pub struct UploadErrorEntry {
 #[cfg(target_arch = "wasm32")]
 pub mod wasm {
     use super::{UploadErrorEntry, UploadsInFlight};
-    // WritableExt 提供 .write()；Writable 提供 .set()。Signal 方法需 trait 在作用域内。
-    use dioxus::prelude::{Readable, Writable, WritableExt};
+    // WritableExt 提供 .write()（Signal 在 Copy 语义下不需要 mut 绑定）。
+    use dioxus::prelude::WritableExt;
     use wasm_bindgen::prelude::*;
     use wasm_bindgen::JsCast;
 
@@ -251,10 +251,11 @@ pub mod wasm {
                     .map_err(|_| js_sys::Error::new("无法附加文件"))?;
 
                 // 构造 POST 请求，credentials same-origin 携带 session cookie
-                let mut init = web_sys::RequestInit::new();
-                init.method("POST");
-                init.body(Some(&form));
-                init.credentials(web_sys::RequestCredentials::SameOrigin);
+                let init = web_sys::RequestInit::new();
+                init.set_method("POST");
+                // set_body 接收 &JsValue（非 Option）；FormData: AsRef<JsValue>。
+                init.set_body(form.as_ref());
+                init.set_credentials(web_sys::RequestCredentials::SameOrigin);
 
                 let request = web_sys::Request::new_with_str_and_init("/api/upload", &init)
                     .map_err(|_| js_sys::Error::new("无法构造上传请求"))?;
@@ -300,6 +301,6 @@ pub mod wasm {
 
 #[cfg(target_arch = "wasm32")]
 pub use wasm::{
-    consume_upload_event, make_upload_closure, EditorHandle, EditorInstance, EditorOptions,
-    TiptapEditorModule, UploadEventJs, get_module,
+    consume_upload_event, make_upload_closure, EditorHandle, EditorOptions, UploadEventJs,
+    get_module,
 };