feat(api-server): cache puzzle gallery card view

server-rs/crates/api-server/src/state.rs

@@ -31,6 +31,7 @@ use tokio::sync::Semaphore;
 use tracing::{info, warn};
 
 use crate::config::AppConfig;
+use crate::puzzle_gallery_cache::PuzzleGalleryCache;
 use crate::wechat_pay::{WechatPayClient, map_wechat_pay_init_error};
 use crate::wechat_provider::build_wechat_provider;
 
@@ -64,6 +65,7 @@ pub struct AppState {
     #[cfg_attr(not(test), allow(dead_code))]
     ai_task_service: AiTaskService,
     spacetime_client: SpacetimeClient,
+    puzzle_gallery_cache: PuzzleGalleryCache,
     llm_client: Option<LlmClient>,
     creative_agent_gpt5_client: Option<LlmClient>,
     creative_agent_executor: Arc<MockLangChainRustAgentExecutor>,
@@ -223,6 +225,7 @@ impl AppState {
             wechat_pay_client,
             ai_task_service,
             spacetime_client,
+            puzzle_gallery_cache: PuzzleGalleryCache::new(),
             llm_client,
             creative_agent_gpt5_client,
             creative_agent_executor: Arc::new(MockLangChainRustAgentExecutor),
@@ -477,6 +480,10 @@ impl AppState {
         &self.spacetime_client
     }
 
+    pub fn puzzle_gallery_cache(&self) -> &PuzzleGalleryCache {
+        &self.puzzle_gallery_cache
+    }
+
     pub fn llm_client(&self) -> Option<&LlmClient> {
         self.llm_client.as_ref()
     }