Add SqlDataTable.ToJson() - serialize rows as JSON array

Each row becomes a JSON object with column names as keys and native
typed values (bool, int, decimal, string, null). Arabic/Unicode text
rendered directly using UnsafeRelaxedJsonEscaping. Optional indented
parameter (default: true).

Bump to v1.2.5.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: vkuttyp

src/SqlDotnetty.Core/SqlDataTable.cs

@@ -1,5 +1,7 @@
 using System.Reflection;
 using System.Text;
+using System.Text.Json;
+using System.Text.Json.Nodes;
 
 namespace CosmoSQLClient.Core;
 
@@ -86,6 +88,43 @@ private static void SetProperty(object obj, PropertyInfo prop, SqlValue value)
         if (v is not null) prop.SetValue(obj, v);
     }
 
+    /// <summary>Render as a JSON array of objects, one per row.</summary>
+    public string ToJson(bool indented = true)
+    {
+        var array = new JsonArray();
+        foreach (var row in Rows)
+        {
+            var obj = new JsonObject();
+            for (int i = 0; i < Columns.Count; i++)
+                obj[Columns[i].Name] = ToJsonNode(row[i]);
+            array.Add(obj);
+        }
+        var options = new JsonSerializerOptions
+        {
+            WriteIndented = indented,
+            Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping
+        };
+        return array.ToJsonString(options);
+    }
+
+    private static JsonNode? ToJsonNode(SqlValue v) => v switch
+    {
+        SqlValue.Null      => null,
+        SqlValue.Bool b    => JsonValue.Create(b.Value),
+        SqlValue.Int8 b    => JsonValue.Create(b.Value),
+        SqlValue.Int16 s   => JsonValue.Create(s.Value),
+        SqlValue.Int32 i   => JsonValue.Create(i.Value),
+        SqlValue.Int64 l   => JsonValue.Create(l.Value),
+        SqlValue.Float f   => JsonValue.Create(f.Value),
+        SqlValue.Double d  => JsonValue.Create(d.Value),
+        SqlValue.Decimal d => JsonValue.Create(d.Value),
+        SqlValue.Text t    => JsonValue.Create(t.Value),
+        SqlValue.Uuid u    => JsonValue.Create(u.Value.ToString()),
+        SqlValue.Date dt   => JsonValue.Create(dt.Value.ToString("O")),
+        SqlValue.Bytes b   => JsonValue.Create(Convert.ToBase64String(b.Value)),
+        _                  => null
+    };
+
     /// <summary>Render as a Markdown table string.</summary>
     public string ToMarkdownTable()
     {

src/SqlDotnetty.Core/SqlDotnetty.Core.csproj

@@ -8,7 +8,7 @@
     <Nullable>enable</Nullable>
 
     <PackageId>CosmoSQLClient.Core</PackageId>
-    <Version>1.2.4</Version>
+    <Version>1.2.5</Version>
     <Authors>Veeran Puthumkara</Authors>
     <Description>Shared core types and interfaces for CosmoSQLClient — a unified .NET database driver for MSSQL, PostgreSQL, MySQL and SQLite using DotNetty.</Description>
     <PackageTags>sql;mssql;postgres;mysql;sqlite;database;driver;dotnetty;nio</PackageTags>

src/SqlDotnetty.MsSql/SqlDotnetty.MsSql.csproj

@@ -20,7 +20,7 @@
     <Nullable>enable</Nullable>
 
     <PackageId>CosmoSQLClient.MsSql</PackageId>
-    <Version>1.2.4</Version>
+    <Version>1.2.5</Version>
     <Authors>Veeran Puthumkara</Authors>
     <Description>Microsoft SQL Server driver for CosmoSQLClient — TDS 7.4 wire protocol from scratch using DotNetty. Supports TLS, Windows/SQL auth, stored procedures and connection pooling.</Description>
     <PackageTags>sql;mssql;sqlserver;tds;database;driver;dotnetty;nio</PackageTags>

src/SqlDotnetty.MySql/SqlDotnetty.MySql.csproj

@@ -20,7 +20,7 @@
     <Nullable>enable</Nullable>
 
     <PackageId>CosmoSQLClient.MySql</PackageId>
-    <Version>1.2.4</Version>
+    <Version>1.2.5</Version>
     <Authors>Veeran Puthumkara</Authors>
     <Description>MySQL driver for CosmoSQLClient — MySQL v10 wire protocol using DotNetty. Supports mysql_native_password, caching_sha2_password auth and connection pooling.</Description>
     <PackageTags>sql;mysql;mariadb;database;driver;dotnetty;nio</PackageTags>

src/SqlDotnetty.Postgres/SqlDotnetty.Postgres.csproj

@@ -20,7 +20,7 @@
     <Nullable>enable</Nullable>
 
     <PackageId>CosmoSQLClient.Postgres</PackageId>
-    <Version>1.2.4</Version>
+    <Version>1.2.5</Version>
     <Authors>Veeran Puthumkara</Authors>
     <Description>PostgreSQL driver for CosmoSQLClient — PostgreSQL v3 wire protocol using DotNetty. Supports SCRAM-SHA-256 auth, TLS and connection pooling.</Description>
     <PackageTags>sql;postgres;postgresql;database;driver;dotnetty;nio</PackageTags>

src/SqlDotnetty.Sqlite/SqlDotnetty.Sqlite.csproj

@@ -16,7 +16,7 @@
     <Nullable>enable</Nullable>
 
     <PackageId>CosmoSQLClient.Sqlite</PackageId>
-    <Version>1.2.4</Version>
+    <Version>1.2.5</Version>
     <Authors>Veeran Puthumkara</Authors>
     <Description>SQLite driver for CosmoSQLClient — wraps Microsoft.Data.Sqlite behind the unified ISqlDatabase interface with connection pooling support.</Description>
     <PackageTags>sql;sqlite;database;driver;dotnetty;nio</PackageTags>