feat: 基金管理人取数支持跨环境库名——新增 DbSchema 库名插值，bigdata 连接串指向 96/glms_bigdata

问题：SQL 硬编码物理库名（bigdata./glms_bigdata.），关联库在不同环境库名不同，换环境即失效；
且仓库所有 appsettings 均未配 bigdata 连接串，本地/单测环境一直走 Unavailable 降级。

- 新增 YLErpDAL/DataBase/DbSchema：从连接串 database= 解析物理库名（含反引号、\w+ 白名单校验、进程级缓存），
  跨库 SQL 写 DbSchema.Of("bigdata").mf_fundarchives ——代码只认逻辑连接名（等价 Java @Mapper 指定数据源），
  物理库名归各环境 appsettings；将来 join ERP 主库用 DbSchema.Of("ylcms") 同法插值
- FundManagerLookupService：SQL 两处库名前缀改为插值（查找逻辑/CONVERT/COLLATE 不变），Unavailable 降级语义不变
- appsettings.local.json / UnitTestProject appsettings.json 补 bigdata=192.168.2.96:3306/glms_bigdata（抄现有 96 库连接串改库名）
- 新增 FundManagerLookupServiceTest（连 96 实库）：DbSchema 解析断言 + Lookup 连通性
  实测 511160.SH → Unique「东财基金管理有限公司」全链路打通；161210/630006 因 mf_investadvisoroutline 仅2行无映射返回 NotFound（数据覆盖问题）

UnitTestProject/Modules/UnderlyingModule/FundManagerLookupServiceTest.cs

@@ -0,0 +1,46 @@
+using Dapper;
+using YLErp.Modules.UnderlyingModule;
+
+namespace YLErp.UnitTestProject.Modules.UnderlyingModule
+{
+    /// <summary>
+    /// 基金管理人取数（bigdata 数据源）连通性与库名插值验证（连 96 测试库）：
+    /// - DbSchema.Of 从连接串解析物理库名（glms_bigdata），SQL 不再硬编码库名、跨环境库名不同也能命中；
+    /// - Lookup 全链路（连接 96 → 插值 SQL 执行 → 结果归并）不返回 Unavailable 即为连通且 SQL 有效。
+    /// </summary>
+    [TestClass]
+    public class FundManagerLookupServiceTest
+    {
+        [TestMethod]
+        public void DbSchema_从连接串解析物理库名()
+        {
+            Assert.AreEqual("`glms_bigdata`", DbSchema.Of("bigdata"));
+            Assert.AreEqual("`glms_yltrs_ylcms`", DbSchema.Of("ylcms"));
+        }
+
+        [TestMethod]
+        public void Lookup_连接96大数据库_非降级()
+        {
+            var service = new FundManagerLookupService();
+            //96 库现有测试数据 161210/630006/511160（SECUCODE 无后缀，与去后缀匹配逻辑一致），用库存代码验证全链路命中
+            foreach (var code in new[] { "511160.SH", "161210.SZ", "630006.SH" })
+            {
+                var result = service.Lookup(code);
+                Console.WriteLine($"code={code} → Status={result.Status}, InvestAdvisorName={result.InvestAdvisorName}");
+                Assert.AreNotEqual(FundManagerLookupStatus.Unavailable, result.Status,
+                    $"code={code} 返回 Unavailable：96 bigdata 库不可达或插值 SQL 执行失败");
+            }
+        }
+
+        [TestMethod]
+        public void Diag_查看库存secucode样例与行数()
+        {
+            using var connection = new MySqlConnector.MySqlConnection(AppManager.GetConnectionString("bigdata"));
+            var count = connection.ExecuteScalar<long>($"SELECT COUNT(*) FROM {DbSchema.Of("bigdata")}.mf_fundarchives");
+            var samples = connection.Query<string>($"SELECT SECUCODE FROM {DbSchema.Of("bigdata")}.mf_fundarchives LIMIT 8");
+            Console.WriteLine($"mf_fundarchives 行数={count}, SECUCODE样例=[{string.Join(",", samples)}]");
+            var advCount = connection.ExecuteScalar<long>($"SELECT COUNT(*) FROM {DbSchema.Of("bigdata")}.mf_investadvisoroutline");
+            Console.WriteLine($"mf_investadvisoroutline 行数={advCount}");
+        }
+    }
+}

UnitTestProject/appsettings.json

@@ -3,7 +3,8 @@
     "ylcms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_ylcms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
     "yladmin": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_admin;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
     "ylclient": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_client;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
-    "bondoms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=zszq_bond_oms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;"
+    "bondoms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=zszq_bond_oms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
+    "bigdata": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_bigdata;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;"
   },
   "LibreOffice": {
     "ExePath": "",

YLErpDAL/DataBase/DbSchema.cs

@@ -0,0 +1,41 @@
+using MySqlConnector;
+using System.Collections.Concurrent;
+using System.Text.RegularExpressions;
+
+namespace YLErp.BLL
+{
+    /// <summary>
+    /// 跨库 SQL 的物理库名解析器：代码里只写逻辑连接名（appsettings ConnectionStrings 的 key，
+    /// 与 Java @Mapper 指定数据源名同语义），物理库名由各环境连接串的 database= 决定——
+    /// 同一逻辑库在不同环境库名不同（如 bigdata 在测试环境为 glms_bigdata），SQL 中硬编码库名会跨环境失败。
+    /// 用法：{@DbSchema.Of("bigdata")}.mf_fundarchives（返回带反引号的库名，可直接内插）。
+    /// 仅标识自家的 appsettings 连接串，值不来自用户输入；仍做 \w+ 白名单校验防御配置笔误。
+    /// </summary>
+    public static class DbSchema
+    {
+        private static readonly ConcurrentDictionary<string, string> Cache = new();
+        private static readonly Regex SafeIdentifier = new(@"^\w+$", RegexOptions.Compiled);
+
+        /// <summary>
+        /// 取逻辑连接名对应的物理库名（形如 `glms_bigdata`，含反引号）。配置缺失或库名非法立即抛错——
+        /// 跨库 SQL 拼错库名在运行期才暴露更难排查，配置错误应尽早失败。
+        /// </summary>
+        public static string Of(string connectionKey)
+        {
+            return Cache.GetOrAdd(connectionKey, key =>
+            {
+                var connectionString = AppManager.GetConnectionString(key);
+                if (string.IsNullOrWhiteSpace(connectionString))
+                {
+                    throw new InvalidOperationException($"跨库SQL依赖的连接串未配置：{key}");
+                }
+                var database = new MySqlConnectionStringBuilder(connectionString).Database;
+                if (string.IsNullOrWhiteSpace(database) || !SafeIdentifier.IsMatch(database))
+                {
+                    throw new InvalidOperationException($"连接串 {key} 缺少 database 或库名非法：{database}");
+                }
+                return "`" + database + "`";
+            });
+        }
+    }
+}

YLErpDAL/Modules/UnderlyingModule/FundManagerLookupService.cs

@@ -30,16 +30,21 @@ namespace YLErp.Modules.UnderlyingModule
             public string InvestAdvisorName { get; set; }
         }
 
-        private const string LookupSql = @"
+        //物理库名由连接串 database= 决定（DbSchema 解析），各环境库名不同（如测试环境 glms_bigdata），
+        //SQL 不硬编码库名；连接开在 bigdata 数据源上，将来跨库 join ERP 主库时用 DbSchema.Of("ylcms") 同法插值
+        private string BuildLookupSql()
+        {
+            return $@"
 SELECT
     ia.investadvisorcode AS InvestAdvisorCode,
     ia.investadvisorname AS InvestAdvisorName
-FROM bigdata.mf_fundarchives AS fa
+FROM {DbSchema.Of("bigdata")}.mf_fundarchives AS fa
-INNER JOIN bigdata.mf_investadvisoroutline AS ia
+INNER JOIN {DbSchema.Of("bigdata")}.mf_investadvisoroutline AS ia
     ON CONVERT(fa.investadvisorcode USING utf8mb4) COLLATE utf8mb4_unicode_ci =
        CONVERT(ia.investadvisorcode USING utf8mb4) COLLATE utf8mb4_unicode_ci
 WHERE CONVERT(fa.secucode USING utf8mb4) COLLATE utf8mb4_unicode_ci =
       CONVERT(TRIM(SUBSTRING_INDEX(@UnderlyingCode, '.', 1)) USING utf8mb4) COLLATE utf8mb4_unicode_ci";
+        }
 
         public FundManagerLookupResult Lookup(string underlyingCode)
         {
@@ -58,7 +63,7 @@ WHERE CONVERT(fa.secucode USING utf8mb4) COLLATE utf8mb4_unicode_ci =
             try
             {
                 using var connection = new MySqlConnection(connectionString);
-                var matches = connection.Query<FundManagerRow>(LookupSql, new { UnderlyingCode = normalizedCode }, commandTimeout: 10)
+                var matches = connection.Query<FundManagerRow>(BuildLookupSql(), new { UnderlyingCode = normalizedCode }, commandTimeout: 10)
                     .Where(row => !string.IsNullOrWhiteSpace(row.InvestAdvisorName))
                     .GroupBy(row => (row.InvestAdvisorCode ?? string.Empty).Trim(), StringComparer.OrdinalIgnoreCase)
                     .Select(group => group.Select(row => row.InvestAdvisorName.Trim()).Distinct(StringComparer.OrdinalIgnoreCase).ToArray())

YLErpWeb/appsettings.local.json

@@ -10,7 +10,8 @@
     "ylcms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_ylcms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
     "yladmin": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_admin;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
     "ylclient": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_yltrs_client;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
-    "bondoms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_bond_oms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;"
+    "bondoms": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_bond_oms;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;",
+    "bigdata": "server=192.168.2.96;uid=DBAdmin;pooling=true;port=3306;pwd=YieldChain$$2025;database=glms_bigdata;charset=utf8;Allow User Variables=True;SslMode=none;Connection Timeout=30;IgnoreCommandTransaction=true;"
   },
   "AppSettings": {
     "VirtualPathRoot": "",