同步完整源码至远程：扁平化重构现状 + 未入库源文件

- 补入库：server/internal/db/dump.go、redis 分页/扫描预算测试、opsxdb-mcp main_test、
  packages/opsxdb-mcp package-lock、docs 审计与对比文档等 37 个新文件
- 含结构扁平化进行中的 80 处修改与 155 处旧结构删除（server/ src/ src-tauri/ 为当前有效源）
- 构建产物（bin/target/dist）与签名私钥仍按规则排除

src-tauri/Cargo.toml

@@ -1,12 +1,12 @@
 [package]
-name = "opsxdb-desktop"
+name = "opsxdb"
 version = "0.1.0"
 description = "OpsxDB Tauri desktop shell"
 authors = ["OpsxDB"]
 edition = "2021"
 
 [lib]
-name = "opsxdb_desktop_lib"
+name = "opsxdb_lib"
 crate-type = ["staticlib", "cdylib", "rlib"]
 
 [build-dependencies]