Merge branch 'codex/feature-1'

# Conflicts:
#	docs/【玩法创作】平台入口与玩法链路-2026-05-15.md
#	src/components/platform-entry/PlatformEntryFlowShellImpl.tsx
#	src/components/rpg-entry/RpgEntryFlowShell.agent.interaction.test.tsx
#	src/services/miniGameDraftGenerationProgress.ts

server-rs/crates/spacetime-module/src/migration.rs

@@ -1180,6 +1180,9 @@ fn normalize_migration_row(table_name: &str, value: &serde_json::Value) -> serde
             object
                 .entry("event_ends_at_text".to_string())
                 .or_insert(serde_json::Value::Null);
+            object
+                .entry("event_banners_json".to_string())
+                .or_insert(serde_json::Value::Null);
         }
     }
     if table_name == "creation_entry_type_config" {

server-rs/crates/spacetime-module/src/runtime/creation_entry_config.rs

@@ -23,6 +23,9 @@ pub struct CreationEntryConfig {
     pub(crate) event_starts_at_text: Option<String>,
     #[default(None::<String>)]
     pub(crate) event_ends_at_text: Option<String>,
+    /// 底部加号创作入口页的多 banner JSON 配置，旧单条字段仅用于兼容。
+    #[default(None::<String>)]
+    pub(crate) event_banners_json: Option<String>,
 }
 
 #[spacetimedb::table(
@@ -85,6 +88,27 @@ pub fn upsert_creation_entry_type_config(
     }
 }
 
+#[spacetimedb::procedure]
+/// 后台保存底部加号创作入口页多 banner 配置的过程入口。
+pub fn upsert_creation_entry_event_banners_config(
+    ctx: &mut ProcedureContext,
+    input: CreationEntryEventBannersAdminUpsertInput,
+) -> CreationEntryConfigProcedureResult {
+    match ctx.try_with_tx(|tx| upsert_creation_entry_event_banners_config_in_tx(tx, input.clone()))
+    {
+        Ok(record) => CreationEntryConfigProcedureResult {
+            ok: true,
+            record: Some(record),
+            error_message: None,
+        },
+        Err(message) => CreationEntryConfigProcedureResult {
+            ok: false,
+            record: None,
+            error_message: Some(message),
+        },
+    }
+}
+
 fn upsert_creation_entry_type_config_in_tx(
     ctx: &ReducerContext,
     input: CreationEntryTypeAdminUpsertInput,
@@ -122,6 +146,31 @@ fn upsert_creation_entry_type_config_in_tx(
     get_or_seed_creation_entry_config_snapshot(ctx)
 }
 
+/// 在事务内归一化 banner JSON 并更新全局入口配置表头。
+fn upsert_creation_entry_event_banners_config_in_tx(
+    ctx: &ReducerContext,
+    input: CreationEntryEventBannersAdminUpsertInput,
+) -> Result<CreationEntryConfigSnapshot, String> {
+    seed_creation_entry_config_if_missing(ctx);
+    let now = ctx.timestamp;
+    let config_id = CREATION_ENTRY_CONFIG_GLOBAL_ID.to_string();
+    let Some(header) = ctx.db.creation_entry_config().config_id().find(&config_id) else {
+        return Err("创作入口配置初始化失败".to_string());
+    };
+    let event_banners_json =
+        module_runtime::normalize_creation_entry_event_banners_json(&input.event_banners_json)?;
+
+    ctx.db
+        .creation_entry_config()
+        .config_id()
+        .update(CreationEntryConfig {
+            updated_at: now,
+            event_banners_json: Some(event_banners_json),
+            ..header
+        });
+    get_or_seed_creation_entry_config_snapshot(ctx)
+}
+
 fn get_or_seed_creation_entry_config_snapshot(
     ctx: &ReducerContext,
 ) -> Result<CreationEntryConfigSnapshot, String> {
@@ -192,12 +241,16 @@ fn get_or_seed_creation_entry_config_snapshot(
                 header.event_ends_at_text.as_deref(),
                 DEFAULT_CREATION_ENTRY_EVENT_ENDS_AT_TEXT,
             ),
+            render_mode: "structured".to_string(),
+            html_code: None,
         },
+        event_banners_json: header.event_banners_json,
         creation_types,
         updated_at_micros: header.updated_at.to_micros_since_unix_epoch(),
     })
 }
 
+/// 初始化创作入口全局配置，并为旧库补齐默认多 banner JSON。
 fn seed_creation_entry_config_if_missing(ctx: &ReducerContext) {
     let now = ctx.timestamp;
     if ctx
@@ -222,6 +275,7 @@ fn seed_creation_entry_config_if_missing(ctx: &ReducerContext) {
             event_prize_pool_mud_points: DEFAULT_CREATION_ENTRY_EVENT_PRIZE_POOL_MUD_POINTS,
             event_starts_at_text: Some(DEFAULT_CREATION_ENTRY_EVENT_STARTS_AT_TEXT.to_string()),
             event_ends_at_text: Some(DEFAULT_CREATION_ENTRY_EVENT_ENDS_AT_TEXT.to_string()),
+            event_banners_json: Some(module_runtime::default_creation_entry_event_banners_json()),
         });
     }