release(secrets-mcp): 0.5.10 — Web 模块化、性能与错误处理

- 拆分 web.rs 为 web/ 子模块；统一 client_ip 提取
- core: user_scope SQL 复用、env_map N+1 消除、FETCH_ALL 上限调整
- entries 列表页并行查询；PgPool 去 Arc；结构化 NotFound 等错误
- CI: SSH 私钥安全写入；crypto/hex 与依赖清理；MCP 输入长度校验
- AGENTS: API Key 明文存储设计说明

crates/secrets-mcp/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "secrets-mcp"
-version = "0.5.9"
+version = "0.5.10"
 edition.workspace = true
 
 [[bin]]
@@ -34,7 +34,6 @@ anyhow.workspace = true
 chrono.workspace = true
 serde.workspace = true
 serde_json.workspace = true
-sha2.workspace = true
 rand.workspace = true
 sqlx.workspace = true
 tokio.workspace = true