refactor(session-query): split model-facing tool modules

.agents/notes/implemented/feature/2026-07-24-model-facing-session-query-tools.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write
-2026-07-24-model-facing-session-query-tools.md: aea490f3569dd95bffb6ebbaae5a130e6440c281
-2026-07-24-model-facing-session-query-tools.zh.md: eae100375fe7abf91ba3e503808a6d98b540255e
+2026-07-24-model-facing-session-query-tools.md: bc9143150d1e17eda9eab7f4864ed3a2f4983157
+2026-07-24-model-facing-session-query-tools.zh.md: c8a0c70789f21e4bbca523b6acc81925fb17b604

.agents/notes/implemented/feature/2026-07-24-model-facing-session-query-tools.md

@@ -12,6 +12,8 @@ The unified `ctx.sessionQuery` service exposes exact reads, filters, relationshi
 
 `@deepseek-ai/dsh-tool-session-query` is the model-facing consumer of `ctx.sessionQuery`. It registers five narrow read-only tools: `session_search`, `session_event_search`, `session_trace`, `session_event_trace`, and `session_event_read`. The package imports the interface rather than the SQLite implementation, owns model argument validation and readable text rendering, and contributes one concise prompt section that teaches the prior-history search and search-to-trace/read workflow.
 
+The package entrypoint is only the public composition root for configuration, prompt registration, and tool registration. Its internal modules follow the execution boundary: `input.ts` owns model schemas, normalization, and filter construction; `service-boundary.ts` contains provider calls and model-safe error translation; `workspace-access.ts` owns caller identity, workspace authorization, title access, and lineage projection; `operations.ts` orchestrates the five service workflows; and `presentation.ts` renders tool results and call cards. This keeps policy in its owning layer without changing the package contract.
+
 `session_search` groups full-text matches by session and exposes typed session and event metadata filters. `session_event_search` searches one session, defaulting to the caller's current session. `session_trace` returns the complete authorized ancestor chain and recursive descendant trees. `session_event_trace` returns every known positional replacement and direct provenance relationship for one event. `session_event_read` returns the exact target event as unabridged JSON and optionally summarizes a bounded raw-event window; omitted `before` and `after` values mean target-only.
 
 Model-facing filters use flat snake-case fields. Timestamps are timezone-qualified ISO 8601 strings at the tool boundary, convert to inclusive epoch-millisecond ranges for the service, and render as UTC ISO 8601. List values are ORed inside one filter while separate filters are ANDed. Requested parent ids are deduplicated and authority-filtered before FTS, so only parents in the caller workspace enter the provider clause; missing and cross-workspace guesses behave identically, while the root-session marker remains independently ORed into that clause. Event type strings remain open because `SessionEventMap` is merge-extensible; availability and event surface use closed values.

.agents/notes/implemented/feature/2026-07-24-model-facing-session-query-tools.zh.md

@@ -12,6 +12,8 @@ Status: implemented
 
 `@deepseek-ai/dsh-tool-session-query` 是 `ctx.sessionQuery` 面向模型的消费者。它注册五个职责单一的只读工具：`session_search`、`session_event_search`、`session_trace`、`session_event_trace` 和 `session_event_read`。该包依赖接口而非 SQLite 实现，负责模型参数校验与易读文本渲染，并贡献一个精简的提示词段，说明历史搜索以及从搜索转向追踪／读取的工作流。
 
+该包入口仅作为配置、提示词注册与工具注册的公开组合根。内部模块沿执行边界划分：`input.ts` 负责模型 schema、规范化与过滤条件构造；`service-boundary.ts` 包含提供方调用与面向模型的安全错误转换；`workspace-access.ts` 负责调用者身份、工作区授权、标题访问与谱系投影；`operations.ts` 编排五个服务工作流；`presentation.ts` 渲染工具结果与调用卡片。这样可让策略留在其所属层，同时不改变包契约。
+
 `session_search` 按会话聚合全文匹配，并公开带类型的会话与事件元数据过滤条件。`session_event_search` 搜索一个会话，默认目标为调用者的当前会话。`session_trace` 返回完整的已授权祖先链与递归后代树。`session_event_trace` 返回一个事件所有已知的位置替换关系与直接来源关系。`session_event_read` 以未删节 JSON 返回准确的目标事件，并可选择汇总一个有界的原始事件窗口；省略 `before` 与 `after` 时只返回目标。
 
 面向模型的过滤条件使用扁平的 snake-case 字段。工具边界上的时间戳采用带时区的 ISO 8601 字符串，转换为服务使用的闭区间毫秒时间戳，并以 UTC ISO 8601 渲染。同一个过滤条件中的列表值按 OR 组合，不同过滤条件按 AND 组合。请求的父会话 id 会在 FTS 之前去重并按权限过滤，因此只有调用者工作区中的父会话会进入提供方条件；缺失与跨工作区的猜测具有相同行为，而根会话标记仍会独立按 OR 加入该条件。由于 `SessionEventMap` 可通过声明合并扩展，事件类型字符串保持开放；可用状态与事件表层使用封闭取值。