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

Cargo.lock

@@ -2054,7 +2054,6 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_yaml",
- "sha2",
  "sqlx",
  "tempfile",
  "thiserror",
@@ -2066,7 +2065,7 @@ dependencies = [
 
 [[package]]
 name = "secrets-mcp"
-version = "0.5.9"
+version = "0.5.10"
 dependencies = [
  "anyhow",
  "askama",
@@ -2083,7 +2082,6 @@ dependencies = [
  "secrets-core",
  "serde",
  "serde_json",
- "sha2",
  "sqlx",
  "time",
  "tokio",