清理素材提取提示中的备注内容

对 YAML 提示中的描述和返工备注做有界清洗，避免代码围栏破坏提示结构。

apps/ai-game-creator-shell/src-tauri/src/ui_editor/commands/separation/prompt/extract.rs

@@ -1,6 +1,6 @@
 use crate::ui_editor::commands::separation::model::{SeparationState, SeparationTree};
 use crate::ui_editor::commands::separation::workflow::batch::terminal_node_ids;
-use crate::ui_editor::commands::separation::{SeparationNode, SeparationNodeKind};
+use crate::ui_editor::commands::separation::{sanitize_prompt_text, SeparationNode, SeparationNodeKind, MAX_NOTE_DESCRIPTION_CHARS, MAX_REWORK_NOTE_CHARS};
 use crate::ui_editor::utils::NodeId;
 use serde::Serialize;
 use std::collections::HashSet;
@@ -113,8 +113,13 @@ fn project_node(
             width: node.width_px,
             height: node.height_px,
         },
-        description: node.note.description.clone(),
-        rework_notes: node.note.rework_notes.iter().cloned().collect(),
+        description: sanitize_prompt_text(&node.note.description, MAX_NOTE_DESCRIPTION_CHARS),
+        rework_notes: node
+            .note
+            .rework_notes
+            .iter()
+            .map(|note| sanitize_prompt_text(note, MAX_REWORK_NOTE_CHARS))
+            .collect(),
         children,
     }
 }