按后台配置扣除创作泥点

前端创作表单泥点预校验改为读取入口契约配置

拼图和抓大鹅初始生成后端扣费改为解析后台配置

汪汪声浪初始三图生成按入口总成本拆分扣费

创作工作台按钮和确认弹窗展示后台配置泥点成本

补充泥点扣费回归测试并同步文档与共享记忆

server-rs/crates/api-server/src/match3d/draft.rs

@@ -163,6 +163,12 @@ pub(super) async fn compile_match3d_draft_for_session(
         .clone()
         .unwrap_or_else(|| fallback_work_metadata.tags.clone());
     let billing_asset_id = format!("{}:{}:{}", session_id, profile_id, current_utc_micros());
+    let points_cost = crate::creation_entry_config::resolve_creation_entry_mud_point_cost(
+        state,
+        "match3d",
+        MATCH3D_DRAFT_GENERATION_POINTS_COST,
+    )
+    .await;
     let compile_session_id = session_id.clone();
     let compile_owner_user_id = owner_user_id.clone();
     let compile_profile_id = profile_id.clone();
@@ -175,6 +181,7 @@ pub(super) async fn compile_match3d_draft_for_session(
         request_context,
         owner_user_id.as_str(),
         billing_asset_id.as_str(),
+        points_cost,
         async {
             let mut session = upsert_match3d_draft_snapshot(
                 state,
@@ -418,12 +425,13 @@ fn match3d_response_failure_message(response: &Response) -> String {
         .unwrap_or_else(|| format!("抓大鹅草稿生成失败，HTTP {}", response.status()))
 }
 
-/// 中文注释：抓大鹅草稿生成是一次完整外部生成动作，按 session/profile 幂等预扣 10 泥点。
+/// 中文注释：抓大鹅草稿生成是一次完整外部生成动作，按后台入口配置的泥点成本幂等预扣。
 async fn execute_billable_match3d_draft_generation<T, Fut>(
     state: &AppState,
     request_context: &RequestContext,
     owner_user_id: &str,
     billing_asset_id: &str,
+    points_cost: u64,
     operation: Fut,
 ) -> Result<T, Response>
 where
@@ -434,6 +442,7 @@ where
         request_context,
         owner_user_id,
         billing_asset_id,
+        points_cost,
     )
     .await?;
 
@@ -441,8 +450,13 @@ where
         Ok(value) => Ok(value),
         Err(response) => {
             if points_consumed {
-                refund_match3d_draft_generation_points(state, owner_user_id, billing_asset_id)
-                    .await;
+                refund_match3d_draft_generation_points(
+                    state,
+                    owner_user_id,
+                    billing_asset_id,
+                    points_cost,
+                )
+                .await;
             }
             Err(response)
         }
@@ -454,6 +468,7 @@ async fn consume_match3d_draft_generation_points(
     request_context: &RequestContext,
     owner_user_id: &str,
     billing_asset_id: &str,
+    points_cost: u64,
 ) -> Result<bool, Response> {
     let ledger_id = format!(
         "asset_operation_consume:{}:match3d_draft_generation:{}",
@@ -463,7 +478,7 @@ async fn consume_match3d_draft_generation_points(
         .spacetime_client()
         .consume_profile_wallet_points(
             owner_user_id.to_string(),
-            MATCH3D_DRAFT_GENERATION_POINTS_COST,
+            points_cost,
             ledger_id,
             current_utc_micros(),
         )
@@ -491,6 +506,7 @@ async fn refund_match3d_draft_generation_points(
     state: &AppState,
     owner_user_id: &str,
     billing_asset_id: &str,
+    points_cost: u64,
 ) {
     let ledger_id = format!(
         "asset_operation_refund:{}:match3d_draft_generation:{}",
@@ -500,7 +516,7 @@ async fn refund_match3d_draft_generation_points(
         .spacetime_client()
         .refund_profile_wallet_points(
             owner_user_id.to_string(),
-            MATCH3D_DRAFT_GENERATION_POINTS_COST,
+            points_cost,
             ledger_id,
             current_utc_micros(),
         )