大改，整理项目结构，完成rust ffi调用，写好tcp接口

chusql-server/chusql-server.cabal

@@ -0,0 +1,79 @@
+cabal-version: 2.4
+
+name:           chusql-server
+version:        1.0.0
+synopsis:       ChuSQL 数据库服务器：TCP 端点 + 自家协议 + SQL 会话
+description:    ChuSQL 的数据库服务器。负责监听 TCP、一行一条 JSON 的自家协议、
+                登录与限流，并把用户 SQL 转交给 chusql-core-engine（存储则由进程内
+                的 chusql_core_storage 动态库承担）。Web 管理端与命令行客户端都只
+                通过这条 TCP 连接访问数据库。
+build-type:     Simple
+
+library
+    hs-source-dirs:   src
+    exposed-modules:  ChuSQL.Server.Accounts
+                      ChuSQL.Server.Backend
+                      ChuSQL.Server.Policy
+                      ChuSQL.Server.Privileges
+                      ChuSQL.Server.Session
+                      ChuSQL.Server.TCP
+    build-depends:    base >= 4.14 && < 5
+                    , aeson
+                    , bytestring
+                    , chusql-core-engine
+                    , chusql-core-model
+                    , chusql-interface
+                    , containers
+                    , crypton
+                    , directory
+                    , filepath
+                    , memory
+                    , network
+                    , scientific
+                    , text
+                    , time
+                    , vector
+    default-language: Haskell2010
+    ghc-options:      -Wall
+
+executable chusql-server
+    main-is:          Main.hs
+    hs-source-dirs:   app
+    build-depends:    base
+                    , chusql-core-engine
+                    , chusql-core-model
+                    , chusql-interface
+                    , chusql-server
+                    , containers
+                    , filepath
+                    , text
+                    , time
+    default-language: Haskell2010
+    ghc-options:      -Wall -threaded
+    -- 运行期找 libchusql_core_storage.so：$ORIGIN 让二进制与动态库同目录即可
+    if os(linux)
+        ld-options: -Wl,-rpath,$ORIGIN
+    if os(osx)
+        ld-options: -Wl,-rpath,@loader_path
+
+test-suite chusql-server-test
+    type:             exitcode-stdio-1.0
+    main-is:          Spec.hs
+    hs-source-dirs:   test
+    build-depends:    base
+                    , aeson
+                    , bytestring
+                    , chusql-core-engine
+                    , chusql-core-model
+                    , chusql-interface
+                    , chusql-server
+                    , containers
+                    , directory
+                    , filepath
+                    , hspec
+                    , network
+                    , text
+                    , time
+                    , vector
+    default-language: Haskell2010
+    ghc-options:      -Wall -threaded