合并 origin/master

合入 master 的钱包退款 outbox、拼图后台编译互斥与公开链路更新

保留当前分支外部生成 worker 队列语义，并对齐拼图首图 claim 释放顺序

server-rs/crates/api-server/src/puzzle/draft.rs

@@ -157,6 +157,10 @@ pub(crate) struct PuzzleCompileDraftWorkerPayload {
     #[serde(default)]
     pub image_model: Option<String>,
     pub requested_at_micros: i64,
+    #[serde(default)]
+    pub background_task_id: Option<String>,
+    #[serde(default)]
+    pub background_claim_id: Option<String>,
 }
 
 pub(crate) async fn execute_puzzle_compile_draft_worker_job(
@@ -228,6 +232,11 @@ pub(crate) async fn execute_puzzle_compile_draft_worker_job(
                 )
                 .await;
             }
+            release_inline_puzzle_compile_background_claim(
+                state,
+                &payload,
+                &external_generation_guard,
+            );
             Ok(session)
         }
         Err(error) => {
@@ -255,6 +264,11 @@ pub(crate) async fn execute_puzzle_compile_draft_worker_job(
                         },
                     )
                     .await;
+                    release_inline_puzzle_compile_background_claim(
+                        state,
+                        &payload,
+                        &external_generation_guard,
+                    );
                     Err(PuzzleExternalGenerationWorkerError::with_failure_state_written(error))
                 }
                 Err(mark_error) => {
@@ -265,6 +279,37 @@ pub(crate) async fn execute_puzzle_compile_draft_worker_job(
     }
 }
 
+fn release_inline_puzzle_compile_background_claim(
+    state: &PuzzleApiState,
+    payload: &PuzzleCompileDraftWorkerPayload,
+    external_generation_guard: &ExternalGenerationWriteLeaseGuard,
+) {
+    if external_generation_guard.job_id.is_some() {
+        return;
+    }
+    release_puzzle_compile_background_claim(state, payload);
+}
+
+pub(crate) fn release_puzzle_compile_background_claim(
+    state: &PuzzleApiState,
+    payload: &PuzzleCompileDraftWorkerPayload,
+) {
+    let (Some(task_id), Some(claim_id)) = (
+        payload.background_task_id.as_ref(),
+        payload.background_claim_id.as_ref(),
+    ) else {
+        return;
+    };
+
+    spawn_release_claimed_puzzle_background_compile_task(
+        state.clone(),
+        task_id.clone(),
+        claim_id.clone(),
+        payload.session_id.clone(),
+        payload.owner_user_id.clone(),
+    );
+}
+
 pub(crate) async fn mark_puzzle_compile_failure_for_worker(
     state: &PuzzleApiState,
     session_id: &str,