refactor: move server rs workspace entries into crates

server-rs/crates/module-auth/README.md

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+# module-auth 独立模块 crate 占位说明
+
+日期：`2026-04-20`
+
+## 1. crate 职责
+
+`module-auth` 是鉴权与会话模块 crate，后续负责：
+
+1. 用户身份、会话、风控、审计相关领域模型
+2. 手机验证码、微信登录、密码登录的模块内用例编排
+3. 与 `crates/api-server` 的鉴权接口装配对接
+4. 与 `crates/spacetime-module` 的身份表、会话表聚合对接
+
+## 2. 当前阶段说明
+
+当前阶段已冻结前六张鉴权基础表设计，剩余 `wechat_auth_state` 与 token 细节仍按顺序继续展开。
+
+后续与本 crate 直接相关的任务包括：
+
+1. 设计 `user_account`、`auth_identity`、`refresh_session`
+2. 设计 `auth_audit_log`、`auth_risk_block`
+3. 设计 `sms_auth_event`、`wechat_auth_state`
+4. 落地 JWT claims、refresh cookie 与旧接口兼容
+
+当前已冻结文档：
+
+1. [../../../docs/technical/SPACETIMEDB_AUTH_USER_ACCOUNT_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_AUTH_USER_ACCOUNT_TABLE_DESIGN_2026-04-21.md)
+2. [../../../docs/technical/SPACETIMEDB_AUTH_IDENTITY_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_AUTH_IDENTITY_TABLE_DESIGN_2026-04-21.md)
+3. [../../../docs/technical/SPACETIMEDB_REFRESH_SESSION_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_REFRESH_SESSION_TABLE_DESIGN_2026-04-21.md)
+4. [../../../docs/technical/SPACETIMEDB_AUTH_AUDIT_LOG_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_AUTH_AUDIT_LOG_TABLE_DESIGN_2026-04-21.md)
+5. [../../../docs/technical/SPACETIMEDB_AUTH_RISK_BLOCK_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_AUTH_RISK_BLOCK_TABLE_DESIGN_2026-04-21.md)
+6. [../../../docs/technical/SPACETIMEDB_SMS_AUTH_EVENT_TABLE_DESIGN_2026-04-21.md](../../../docs/technical/SPACETIMEDB_SMS_AUTH_EVENT_TABLE_DESIGN_2026-04-21.md)
+
+## 3. 边界约束
+
+1. `module-auth` 负责鉴权领域规则与模块级编排，不直接把供应商 SDK 逻辑写进主工程。
+2. 短信、微信、JWT、Cookie 等平台适配优先通过 `crates/platform-auth` 承接。
+3. 身份与会话状态最终由 `crates/spacetime-module` 聚合，前端接口由 `crates/api-server` 暴露。