Integrate unfinished server-rs refactor worklists

server-rs/crates/module-story/src/domain.rs

@@ -1,4 +1,55 @@
-//! 剧情领域模型过渡落位。
+//! 剧情会话领域模型。
 //!
-//! 后续迁移 `StorySession`、`StoryEvent` 和剧情推进规则时，只保留剧情聚合内部变化；
-//! LLM 生成和 SpacetimeDB 写回由外层 adapter 处理。
+//! 这里仅保存 RPG story session 聚合内的稳定状态和值对象；LLM 生成、HTTP 回包和
+//! SpacetimeDB 写回都留给外层 adapter，不在领域模型里直接发生副作用。
+
+use serde::{Deserialize, Serialize};
+use shared_kernel::build_prefixed_seed_id;
+#[cfg(feature = "spacetime-types")]
+use spacetimedb::SpacetimeType;
+
+/// 剧情会话 ID 的稳定前缀，统一放在领域层，避免 adapter 重复拼接。
+pub const STORY_SESSION_ID_PREFIX: &str = "storysess_";
+/// 新建剧情会话快照的初始版本号。
+pub const INITIAL_STORY_SESSION_VERSION: u32 = 1;
+
+/// 剧情会话状态，用于判断后续 story command 是否还能继续推进。
+#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub enum StorySessionStatus {
+    Active,
+    Completed,
+    Archived,
+}
+
+impl StorySessionStatus {
+    pub fn as_str(&self) -> &'static str {
+        match self {
+            Self::Active => "active",
+            Self::Completed => "completed",
+            Self::Archived => "archived",
+        }
+    }
+}
+
+/// story session 的领域快照，SpacetimeDB row 与 HTTP DTO 都从它映射。
+#[cfg_attr(feature = "spacetime-types", derive(SpacetimeType))]
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct StorySessionSnapshot {
+    pub story_session_id: String,
+    pub runtime_session_id: String,
+    pub actor_user_id: String,
+    pub world_profile_id: String,
+    pub initial_prompt: String,
+    pub opening_summary: Option<String>,
+    pub latest_narrative_text: String,
+    pub latest_choice_function_id: Option<String>,
+    pub status: StorySessionStatus,
+    pub version: u32,
+    pub created_at_micros: i64,
+    pub updated_at_micros: i64,
+}
+
+pub fn generate_story_session_id(seed_micros: i64) -> String {
+    build_prefixed_seed_id(STORY_SESSION_ID_PREFIX, seed_micros)
+}