新增基于 LLM 的图标规格优化与生成接口

新增 refine_game_play 与 refine_art_style 提示词优化接口
实现图标规范游戏类型解析与提示词构建契约
集成 API 路由并补充校验与 LLM 行为测试

server-rs/crates/api-server/src/modules/editor_project.rs

@@ -26,6 +26,8 @@ use crate::{
         toggle_editor_showcase_asset_like, update_editor_asset, update_editor_asset_folder,
         update_editor_project_resource_showcase,
     },
+    editor_project_icon_specs::generate_icon_spec,
+    llm::icon_specs::{refine_art_style, refine_game_play},
     state::AppState,
 };
 
@@ -191,6 +193,27 @@ pub fn router(state: AppState) -> Router<AppState> {
                 require_bearer_auth,
             )),
         )
+        .route(
+            "/api/editor/llm/icon-specs/refine-game-play",
+            post(refine_game_play).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/editor/llm/icon-specs/refine-art-style",
+            post(refine_art_style).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/editor/icon-specs/generations",
+            post(generate_icon_spec).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
         .route(
             "/api/editor/images/edits",
             post(edit_editor_image).route_layer(middleware::from_fn_with_state(