diff --git a/design/05-editor-mainline/process/5-28-leptos-tiptap-editor-runtime-module-extraction-v1.md b/design/05-editor-mainline/process/5-28-leptos-tiptap-editor-runtime-module-extraction-v1.md
index 810c4c1f..d3f0fcf8 100644
--- a/design/05-editor-mainline/process/5-28-leptos-tiptap-editor-runtime-module-extraction-v1.md
+++ b/design/05-editor-mainline/process/5-28-leptos-tiptap-editor-runtime-module-extraction-v1.md
@@ -120,13 +120,16 @@ rust/spikes/leptos-tiptap-spike/src/
 
 ### P2：抽出 command sync / persistence
 
-- [ ] 新增 `editor_runtime/command_sync.rs`。
-- [ ] 迁出：
+- [x] 新增 `editor_runtime/command_sync.rs`。
+- [x] 新增 `editor_runtime/persistence.rs`。
+- [x] 迁出：
   - `read_editor_snapshot`
   - `sync_editor_outputs`
   - `sync_persisted_editor_command`
-  - change/status event dispatch 的编辑器侧包装
-- [ ] 明确 `set_content` 只允许用于：
+  - `apply_document_update`（当前保持零调用者现状）
+- [ ] 迁出 change/status event dispatch 的编辑器侧包装。
+  - 2026-05-24 复核：`apply_html_update` 仍依赖 `ChangePayload` / `ChangeMetaPayload`、`dispatch_change_event`、`dispatch_runtime_state`、`HoveredBlockState` 和 toolbar overlay state，暂留 `lib.rs`，等待 P4 `bridge_events.rs` / `overlays.rs` 后再迁。
+- [x] 明确 `set_content` 只允许用于：
   - 初始加载
   - host 替换文档
   - 外部同步/恢复
@@ -193,6 +196,8 @@ rust/spikes/leptos-tiptap-spike/src/
 允许读取/修改：
 - rust/spikes/leptos-tiptap-spike/src/editor_runtime/attachment_links.rs
 - rust/spikes/leptos-tiptap-spike/src/editor_runtime/history_safe_commands.rs
+- rust/spikes/leptos-tiptap-spike/src/editor_runtime/command_sync.rs
+- rust/spikes/leptos-tiptap-spike/src/editor_runtime/persistence.rs
 - scripts/task488-local-attachment-link-delete-undo-smoke.js
 
 禁止：
@@ -290,6 +295,12 @@ Codex 主控复核修正：
 - `cargo check --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml`（35 个既有 warning）
 - `cargo build --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml --target wasm32-unknown-unknown --release`
 - `wasm-bindgen rust/spikes/leptos-tiptap-spike/target/wasm32-unknown-unknown/release/mnote_leptos_tiptap_spike.wasm --target web --out-dir rust/spikes/leptos-tiptap-spike/generated/island --out-name mnote-leptos-tiptap-spike-island`
+- `node scripts/task488-local-attachment-link-delete-undo-smoke.js`
+  - 结果：`ok=true`
+  - 证据：`tmp/task488-local-attachment-link-delete-undo-smoke/result.json`
+- `node scripts/task479-local-folder-markdown-resource-lifecycle-smoke.js`
+  - 结果：`ok=true`
+  - 证据：命令 stdout JSON，覆盖 `editor-upload-to-page-resource-dir`、`filetree-folder-drop-to-target`、`broken-link-after-real-file-delete`、`direct-attach-open-without-active-md`、`editor-delete-one-attachment-preserves-adjacent` 等检查。
 - `node scripts/task488-local-attachment-link-delete-undo-smoke.js`
   - 结果：`ok=true`
   - 步骤：`uploaded -> selected -> deleted -> undo -> redo`
@@ -301,6 +312,41 @@ Codex 主控复核修正：
   - 结果：索引 318 个文件，状态 up to date。
   - 复核：`delete_selected_attachment_link_with_history`、`selected_local_attachment_link_text`、`is_local_attachment_link_selected` 均可通过 CodeGraph 搜索定位到 `editor_runtime/*`。
 
+### 10.3 Batch 2 执行记录（2026-05-24）
+
+Reasonix read-only audit：
+
+- run id: `reasonix-2026-05-24T15-01-33-138Z-dc32246a`
+- worker worktree: `/mnt/Data1T/mnote-wt-5-28-command-sync-b2`
+- handoff: `/home/lix/.codex/runtime/reasonix-coding-worker/reasonix-2026-05-24T15-01-33-138Z-dc32246a/process-handoff.md`
+- 类型：只读审计，主控已读取 Hindsight recall、`process-handoff.md`、`process-handoff.json`。
+
+采纳内容：
+
+- 新增 `editor_runtime/command_sync.rs`，迁出 `read_editor_snapshot`、`sync_editor_outputs`、`sync_persisted_editor_command`。
+- 新增 `editor_runtime/persistence.rs`，迁出 `PersistedSpikeDocument`、`PersistedDocumentIdentity`、identity normalization、storage key、localStorage load/persist。
+- `apply_document_update` 迁入 `command_sync.rs`，保持迁移前零调用者现状。
+- `apply_html_update` 暂留 `lib.rs`：它仍强依赖 host change/status event、`HoveredBlockState` 和 toolbar overlay state；后续等 `bridge_events.rs` / `overlays.rs` 拆出后再迁。
+
+Codex 主控复核：
+
+- `persist_document_state` 的 payload、storage key、`localStorage` 写入错误文案保持不变。
+- `sync_persisted_editor_command` 现在委托 `persist_current_editor_snapshot(...)`，dirty count、自身快照读取、HTML/JSON output 更新和反馈文案顺序保持不变。
+- `normalize_identity_value` 改为 `pub(crate)`，用于 mindmap draft identity；`persisted_document_storage_key` 只在 `#[cfg(test)]` 下导入。
+
+已通过验证：
+
+- `cargo fmt --manifest-path rust/Cargo.toml --all --check`
+- `cargo check --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml`（35 个既有 warning）
+- `cargo build --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml --target wasm32-unknown-unknown --release`（35 个既有 warning）
+- `wasm-bindgen rust/spikes/leptos-tiptap-spike/target/wasm32-unknown-unknown/release/mnote_leptos_tiptap_spike.wasm --target web --out-dir rust/spikes/leptos-tiptap-spike/generated/island --out-name mnote-leptos-tiptap-spike-island`
+
+受阻验证：
+
+- `cargo test --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml persisted_document_storage_key_isolated_per_document_identity`
+- `cargo test --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml standalone_mindmap_object_uses_isolated_draft_identity`
+- 阻塞原因：lib test 编译阶段命中既有 `slash_menu_css_uses_viewport_overlay_layer` 中 `STYLE` 未定义；HEAD 中该测试已引用 `STYLE`，而实际常量名为 `SPIKE_STYLE`。该问题不属于本批拆分，已记录为后续单独处理。
+
 ## 11. 测试与验收
 
 ### Rust 检查
diff --git a/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island.js b/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island.js
index 4aed409a..14ea47e7 100644
--- a/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island.js
+++ b/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island.js
@@ -1284,7 +1284,7 @@ function __wbg_get_imports() {
             return ret;
         },
         __wbindgen_cast_0000000000000006: function(arg0, arg1) {
-            // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [NamedExternref("KeyboardEvent")], shim_idx: 745, ret: Unit, inner_ret: Some(Unit) }, mutable: true }) -> Externref`.
+            // Cast intrinsic for `Closure(Closure { owned: true, function: Function { arguments: [NamedExternref("KeyboardEvent")], shim_idx: 758, ret: Unit, inner_ret: Some(Unit) }, mutable: true }) -> Externref`.
             const ret = makeMutClosure(arg0, arg1, wasm_bindgen__convert__closures_____invoke__hd90af689bc3e71bf);
             return ret;
         },
diff --git a/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island_bg.wasm b/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island_bg.wasm
index d385e0f2..efdf6d05 100644
Binary files a/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island_bg.wasm and b/rust/spikes/leptos-tiptap-spike/generated/island/mnote-leptos-tiptap-spike-island_bg.wasm differ
diff --git a/rust/spikes/leptos-tiptap-spike/src/editor_runtime/command_sync.rs b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/command_sync.rs
new file mode 100644
index 00000000..904870b4
--- /dev/null
+++ b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/command_sync.rs
@@ -0,0 +1,122 @@
+use crate::editor_runtime::persistence::{persist_document_state, PersistedDocumentIdentity};
+use leptos::prelude::{GetUntracked, ReadSignal, Set, Update, WriteSignal};
+use leptos_tiptap::{TiptapContent, TiptapEditorHandle};
+use serde_json::{json, Value};
+
+pub(crate) fn read_editor_snapshot(editor: TiptapEditorHandle) -> (String, Value, String) {
+    let html = editor
+        .get_html()
+        .unwrap_or_else(|err| format!("读取 HTML 失败：{err}"));
+    let json_value = editor.get_json().unwrap_or_else(|err| {
+        json!({
+            "type": "error",
+            "message": format!("读取 JSON 失败：{err}"),
+        })
+    });
+    let json_text = serde_json::to_string_pretty(&json_value)
+        .unwrap_or_else(|err| format!("格式化 JSON 失败：{err}"));
+    (html, json_value, json_text)
+}
+
+pub(crate) fn sync_editor_outputs(
+    editor: TiptapEditorHandle,
+    set_html_output: WriteSignal<String>,
+    set_document_json: WriteSignal<Value>,
+    set_json_output: WriteSignal<String>,
+) -> Value {
+    let (html, json_value, json_text) = read_editor_snapshot(editor);
+    set_html_output.set(html);
+    set_document_json.set(json_value.clone());
+    set_json_output.set(json_text);
+    json_value
+}
+
+pub(crate) fn apply_document_update(
+    editor: TiptapEditorHandle,
+    persisted_identity: &PersistedDocumentIdentity,
+    next_document: Value,
+    set_dirty_count: WriteSignal<u32>,
+    set_html_output: WriteSignal<String>,
+    set_document_json: WriteSignal<Value>,
+    set_json_output: WriteSignal<String>,
+    title: ReadSignal<String>,
+    set_command_feedback: WriteSignal<String>,
+    success_message: impl Into<String>,
+) {
+    let success_message = success_message.into();
+    let next_payload = next_document
+        .get("content")
+        .and_then(Value::as_array)
+        .cloned()
+        .map(Value::Array)
+        .unwrap_or_else(|| next_document.clone());
+    match editor.set_content(TiptapContent::json(next_payload)) {
+        Ok(()) => {
+            persist_current_editor_snapshot(
+                editor,
+                persisted_identity,
+                set_dirty_count,
+                set_html_output,
+                set_document_json,
+                set_json_output,
+                title,
+                set_command_feedback,
+                success_message,
+            );
+        }
+        Err(err) => {
+            set_command_feedback.set(format!("更新文档失败：{err}"));
+        }
+    }
+}
+
+pub(crate) fn sync_persisted_editor_command(
+    editor: TiptapEditorHandle,
+    persisted_identity: &PersistedDocumentIdentity,
+    set_dirty_count: WriteSignal<u32>,
+    set_html_output: WriteSignal<String>,
+    set_document_json: WriteSignal<Value>,
+    set_json_output: WriteSignal<String>,
+    title: ReadSignal<String>,
+    set_command_feedback: WriteSignal<String>,
+    success_message: impl Into<String>,
+) {
+    persist_current_editor_snapshot(
+        editor,
+        persisted_identity,
+        set_dirty_count,
+        set_html_output,
+        set_document_json,
+        set_json_output,
+        title,
+        set_command_feedback,
+        success_message.into(),
+    );
+}
+
+fn persist_current_editor_snapshot(
+    editor: TiptapEditorHandle,
+    persisted_identity: &PersistedDocumentIdentity,
+    set_dirty_count: WriteSignal<u32>,
+    set_html_output: WriteSignal<String>,
+    set_document_json: WriteSignal<Value>,
+    set_json_output: WriteSignal<String>,
+    title: ReadSignal<String>,
+    set_command_feedback: WriteSignal<String>,
+    success_message: String,
+) {
+    set_dirty_count.update(|count| *count += 1);
+    let (html, snapshot, json_text) = read_editor_snapshot(editor);
+    set_html_output.set(html.clone());
+    set_document_json.set(snapshot.clone());
+    set_json_output.set(json_text);
+    match persist_document_state(
+        persisted_identity,
+        &title.get_untracked(),
+        &snapshot,
+        Some(html),
+    ) {
+        Ok(()) => set_command_feedback.set(format!("{success_message}，并已写入本地草稿")),
+        Err(err) => set_command_feedback.set(format!("{success_message}，但本地保存失败：{err}")),
+    }
+}
diff --git a/rust/spikes/leptos-tiptap-spike/src/editor_runtime/mod.rs b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/mod.rs
index 96fe433c..2f2e0c27 100644
--- a/rust/spikes/leptos-tiptap-spike/src/editor_runtime/mod.rs
+++ b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/mod.rs
@@ -1,2 +1,4 @@
 pub(crate) mod attachment_links;
+pub(crate) mod command_sync;
 pub(crate) mod history_safe_commands;
+pub(crate) mod persistence;
diff --git a/rust/spikes/leptos-tiptap-spike/src/editor_runtime/persistence.rs b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/persistence.rs
new file mode 100644
index 00000000..8c3a8917
--- /dev/null
+++ b/rust/spikes/leptos-tiptap-spike/src/editor_runtime/persistence.rs
@@ -0,0 +1,96 @@
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+use web_sys::{window, Storage};
+
+const SPIKE_STORAGE_KEY: &str = "mnote.leptos-tiptap-spike.document";
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub(crate) struct PersistedSpikeDocument {
+    #[serde(default)]
+    pub(crate) document_id: Option<String>,
+    #[serde(default)]
+    pub(crate) workspace_id: Option<String>,
+    pub(crate) title: String,
+    pub(crate) content: Value,
+    #[serde(default)]
+    pub(crate) html: Option<String>,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub(crate) struct PersistedDocumentIdentity {
+    pub(crate) document_id: Option<String>,
+    pub(crate) workspace_id: Option<String>,
+}
+
+fn local_storage() -> Option<Storage> {
+    window().and_then(|win| win.local_storage().ok().flatten())
+}
+
+pub(crate) fn normalize_identity_value(value: Option<String>) -> Option<String> {
+    value.and_then(|value| {
+        let trimmed = value.trim();
+        if trimmed.is_empty() {
+            None
+        } else {
+            Some(trimmed.to_string())
+        }
+    })
+}
+
+pub(crate) fn persisted_document_identity(
+    document_id: Option<String>,
+    workspace_id: Option<String>,
+) -> PersistedDocumentIdentity {
+    PersistedDocumentIdentity {
+        document_id: normalize_identity_value(document_id),
+        workspace_id: normalize_identity_value(workspace_id),
+    }
+}
+
+pub(crate) fn persisted_document_storage_key(identity: &PersistedDocumentIdentity) -> String {
+    match (&identity.workspace_id, &identity.document_id) {
+        (Some(workspace_id), Some(document_id)) => {
+            format!("{SPIKE_STORAGE_KEY}:{workspace_id}:{document_id}")
+        }
+        (None, Some(document_id)) => format!("{SPIKE_STORAGE_KEY}:{document_id}"),
+        _ => SPIKE_STORAGE_KEY.to_string(),
+    }
+}
+
+pub(crate) fn persist_document_state(
+    identity: &PersistedDocumentIdentity,
+    title: &str,
+    content: &Value,
+    html: Option<String>,
+) -> Result<(), String> {
+    let payload = PersistedSpikeDocument {
+        document_id: identity.document_id.clone(),
+        workspace_id: identity.workspace_id.clone(),
+        title: title.to_string(),
+        content: content.clone(),
+        html,
+    };
+    let raw = serde_json::to_string(&payload).map_err(|err| format!("序列化草稿失败：{err}"))?;
+    local_storage()
+        .ok_or_else(|| "浏览器 localStorage 不可用".to_string())?
+        .set_item(&persisted_document_storage_key(identity), &raw)
+        .map_err(|err| format!("写入 localStorage 失败：{err:?}"))
+}
+
+pub(crate) fn load_persisted_document(
+    identity: &PersistedDocumentIdentity,
+) -> Option<PersistedSpikeDocument> {
+    let raw = local_storage()?
+        .get_item(&persisted_document_storage_key(identity))
+        .ok()
+        .flatten()?;
+    let document = serde_json::from_str::<PersistedSpikeDocument>(&raw).ok()?;
+    let stored_identity =
+        persisted_document_identity(document.document_id.clone(), document.workspace_id.clone());
+    if stored_identity == *identity || identity.document_id.is_none() {
+        Some(document)
+    } else {
+        None
+    }
+}
diff --git a/rust/spikes/leptos-tiptap-spike/src/lib.rs b/rust/spikes/leptos-tiptap-spike/src/lib.rs
index 5194fb0d..fba668ea 100644
--- a/rust/spikes/leptos-tiptap-spike/src/lib.rs
+++ b/rust/spikes/leptos-tiptap-spike/src/lib.rs
@@ -17,13 +17,22 @@ use wasm_bindgen::{closure::Closure, prelude::*, JsCast, JsValue};
 use wasm_bindgen_futures::{spawn_local, JsFuture};
 use web_sys::{
     window, CustomEvent, CustomEventInit, DragEvent, Element, Event, EventTarget, HtmlElement,
-    HtmlInputElement, MouseEvent, Node, RequestInit, RequestMode, Response, Storage, WheelEvent,
+    HtmlInputElement, MouseEvent, Node, RequestInit, RequestMode, Response, WheelEvent,
 };
 
+use editor_runtime::command_sync::{
+    read_editor_snapshot, sync_editor_outputs, sync_persisted_editor_command,
+};
+use editor_runtime::persistence::{
+    load_persisted_document, normalize_identity_value, persist_document_state,
+    persisted_document_identity, PersistedDocumentIdentity,
+};
+#[cfg(test)]
+use editor_runtime::persistence::persisted_document_storage_key;
+
 const EDITOR_STAGE_SELECTOR: &str = "[data-testid=\"mnote-leptos-tiptap-editor-stage\"]";
 const EDITOR_ROOT_SELECTOR: &str = ".editor-surface .ProseMirror";
 const HANDLE_SHELL_SELECTOR: &str = ".block-handle-shell";
-const SPIKE_STORAGE_KEY: &str = "mnote.leptos-tiptap-spike.document";
 const HANDLE_MULTILINE_HEIGHT: f64 = 40.0;
 const CONTENT_COLUMN_MAX_WIDTH: f64 = 708.0;
 const CONTENT_COLUMN_HORIZONTAL_PADDING: f64 = 48.0;
@@ -2996,25 +3005,6 @@ const SLASH_ACTIONS: [SlashAction; 22] = [
     },
 ];
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-struct PersistedSpikeDocument {
-    #[serde(default)]
-    document_id: Option<String>,
-    #[serde(default)]
-    workspace_id: Option<String>,
-    title: String,
-    content: Value,
-    #[serde(default)]
-    html: Option<String>,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq)]
-struct PersistedDocumentIdentity {
-    document_id: Option<String>,
-    workspace_id: Option<String>,
-}
-
 #[derive(Clone, Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 struct BridgeEnvelope<T>
@@ -4863,10 +4853,6 @@ struct PendingDragState {
     start_y: i32,
 }
 
-fn local_storage() -> Option<Storage> {
-    window().and_then(|win| win.local_storage().ok().flatten())
-}
-
 fn default_title() -> String {
     "Leptos Tiptap 主编辑器 P0".to_string()
 }
@@ -4887,27 +4873,6 @@ fn current_query_param(key: &str) -> Option<String> {
         })
 }
 
-fn normalize_identity_value(value: Option<String>) -> Option<String> {
-    value.and_then(|value| {
-        let trimmed = value.trim();
-        if trimmed.is_empty() {
-            None
-        } else {
-            Some(trimmed.to_string())
-        }
-    })
-}
-
-fn persisted_document_identity(
-    document_id: Option<String>,
-    workspace_id: Option<String>,
-) -> PersistedDocumentIdentity {
-    PersistedDocumentIdentity {
-        document_id: normalize_identity_value(document_id),
-        workspace_id: normalize_identity_value(workspace_id),
-    }
-}
-
 fn resolve_persisted_document_identity(
     explicit_document_id: Option<String>,
     explicit_workspace_id: Option<String>,
@@ -4918,16 +4883,6 @@ fn resolve_persisted_document_identity(
     )
 }
 
-fn persisted_document_storage_key(identity: &PersistedDocumentIdentity) -> String {
-    match (&identity.workspace_id, &identity.document_id) {
-        (Some(workspace_id), Some(document_id)) => {
-            format!("{SPIKE_STORAGE_KEY}:{workspace_id}:{document_id}")
-        }
-        (None, Some(document_id)) => format!("{SPIKE_STORAGE_KEY}:{document_id}"),
-        _ => SPIKE_STORAGE_KEY.to_string(),
-    }
-}
-
 fn persisted_mindmap_object_identity(
     object: Option<&RuntimeStandaloneObject>,
 ) -> Option<PersistedDocumentIdentity> {
@@ -4950,41 +4905,6 @@ fn runtime_persisted_identity(
     persisted_document_identity(document_id.get_untracked(), workspace_id.get_untracked())
 }
 
-fn persist_document_state(
-    identity: &PersistedDocumentIdentity,
-    title: &str,
-    content: &Value,
-    html: Option<String>,
-) -> Result<(), String> {
-    let payload = PersistedSpikeDocument {
-        document_id: identity.document_id.clone(),
-        workspace_id: identity.workspace_id.clone(),
-        title: title.to_string(),
-        content: content.clone(),
-        html,
-    };
-    let raw = serde_json::to_string(&payload).map_err(|err| format!("序列化草稿失败：{err}"))?;
-    local_storage()
-        .ok_or_else(|| "浏览器 localStorage 不可用".to_string())?
-        .set_item(&persisted_document_storage_key(identity), &raw)
-        .map_err(|err| format!("写入 localStorage 失败：{err:?}"))
-}
-
-fn load_persisted_document(identity: &PersistedDocumentIdentity) -> Option<PersistedSpikeDocument> {
-    let raw = local_storage()?
-        .get_item(&persisted_document_storage_key(identity))
-        .ok()
-        .flatten()?;
-    let document = serde_json::from_str::<PersistedSpikeDocument>(&raw).ok()?;
-    let stored_identity =
-        persisted_document_identity(document.document_id.clone(), document.workspace_id.clone());
-    if stored_identity == *identity || identity.document_id.is_none() {
-        Some(document)
-    } else {
-        None
-    }
-}
-
 fn url_requests_embedded_mode() -> bool {
     window()
         .and_then(|win| win.location().search().ok())
@@ -5094,34 +5014,6 @@ where
     dispatch_runtime_event(event_name, payload);
 }
 
-fn read_editor_snapshot(editor: TiptapEditorHandle) -> (String, Value, String) {
-    let html = editor
-        .get_html()
-        .unwrap_or_else(|err| format!("读取 HTML 失败：{err}"));
-    let json_value = editor.get_json().unwrap_or_else(|err| {
-        json!({
-            "type": "error",
-            "message": format!("读取 JSON 失败：{err}"),
-        })
-    });
-    let json_text = serde_json::to_string_pretty(&json_value)
-        .unwrap_or_else(|err| format!("格式化 JSON 失败：{err}"));
-    (html, json_value, json_text)
-}
-
-fn sync_editor_outputs(
-    editor: TiptapEditorHandle,
-    set_html_output: WriteSignal<String>,
-    set_document_json: WriteSignal<Value>,
-    set_json_output: WriteSignal<String>,
-) -> Value {
-    let (html, json_value, json_text) = read_editor_snapshot(editor);
-    set_html_output.set(html);
-    set_document_json.set(json_value.clone());
-    set_json_output.set(json_text);
-    json_value
-}
-
 fn editor_root_element() -> Option<Element> {
     window()
         .and_then(|win| win.document())
@@ -6317,52 +6209,6 @@ fn try_sync_editor_overlay_state(
     true
 }
 
-fn apply_document_update(
-    editor: TiptapEditorHandle,
-    persisted_identity: &PersistedDocumentIdentity,
-    next_document: Value,
-    set_dirty_count: WriteSignal<u32>,
-    set_html_output: WriteSignal<String>,
-    set_document_json: WriteSignal<Value>,
-    set_json_output: WriteSignal<String>,
-    title: ReadSignal<String>,
-    set_command_feedback: WriteSignal<String>,
-    success_message: impl Into<String>,
-) {
-    let success_message = success_message.into();
-    let next_payload = next_document
-        .get("content")
-        .and_then(Value::as_array)
-        .cloned()
-        .map(Value::Array)
-        .unwrap_or_else(|| next_document.clone());
-    match editor.set_content(TiptapContent::json(next_payload)) {
-        Ok(()) => {
-            set_dirty_count.update(|count| *count += 1);
-            let (html, snapshot, json_text) = read_editor_snapshot(editor);
-            set_html_output.set(html.clone());
-            set_document_json.set(snapshot.clone());
-            set_json_output.set(json_text);
-            match persist_document_state(
-                persisted_identity,
-                &title.get_untracked(),
-                &snapshot,
-                Some(html),
-            ) {
-                Ok(()) => {
-                    set_command_feedback.set(format!("{success_message}，并已写入本地草稿"));
-                }
-                Err(err) => {
-                    set_command_feedback.set(format!("{success_message}，但本地保存失败：{err}"));
-                }
-            }
-        }
-        Err(err) => {
-            set_command_feedback.set(format!("更新文档失败：{err}"));
-        }
-    }
-}
-
 fn apply_html_update(
     editor: TiptapEditorHandle,
     persisted_identity: &PersistedDocumentIdentity,
@@ -6524,34 +6370,6 @@ fn insert_editor_paragraph_relative_to_block(
     Ok(new_index)
 }
 
-fn sync_persisted_editor_command(
-    editor: TiptapEditorHandle,
-    persisted_identity: &PersistedDocumentIdentity,
-    set_dirty_count: WriteSignal<u32>,
-    set_html_output: WriteSignal<String>,
-    set_document_json: WriteSignal<Value>,
-    set_json_output: WriteSignal<String>,
-    title: ReadSignal<String>,
-    set_command_feedback: WriteSignal<String>,
-    success_message: impl Into<String>,
-) {
-    let success_message = success_message.into();
-    set_dirty_count.update(|count| *count += 1);
-    let (html, snapshot, json_text) = read_editor_snapshot(editor);
-    set_html_output.set(html.clone());
-    set_document_json.set(snapshot.clone());
-    set_json_output.set(json_text);
-    match persist_document_state(
-        persisted_identity,
-        &title.get_untracked(),
-        &snapshot,
-        Some(html),
-    ) {
-        Ok(()) => set_command_feedback.set(format!("{success_message}，并已写入本地草稿")),
-        Err(err) => set_command_feedback.set(format!("{success_message}，但本地保存失败：{err}")),
-    }
-}
-
 fn focus_top_level_block_start(editor: TiptapEditorHandle, index: usize) -> Result<(), String> {
     editor
         .focus()