feat: extract DevEtl to JdeScoping.DataSync.Dev project

- Create JdeScoping.DataSync.Dev for sandbox testing ETL code
- Create JdeScoping.DataSync.Dev.Tests for associated tests
- Move 22 source files and 8 test files
- Update namespaces from DevEtl to Dev
- Add both projects to solution

NEW/src/JdeScoping.DataSync.Dev/FunctionCodeDevEtl.cs

@@ -0,0 +1,38 @@
+using JdeScoping.DataAccess.Interfaces;
+using JdeScoping.DataSync.Etl.Destinations;
+using JdeScoping.DataSync.Etl.Models;
+using JdeScoping.DataSync.Etl.Pipeline;
+using JdeScoping.DataSync.Etl.Sources;
+
+namespace JdeScoping.DataSync.Dev;
+
+/// <summary>
+/// Development ETL pipeline for the FunctionCode table.
+/// Schema from: Scripts/005_CreateFunctionCodeTable.sql
+/// </summary>
+public static class FunctionCodeDevEtl
+{
+    public static readonly string TableName = "FunctionCode";
+    public static readonly string CacheFileName = "functioncode.json.zstd";
+
+    private static readonly JsonColumnSchema[] Schema =
+    [
+        new("Code", typeof(string), IsNullable: false),
+        new("Description", typeof(string), IsNullable: true),
+        new("LastUpdateDT", typeof(DateTime), IsNullable: false),
+    ];
+
+    public static EtlPipeline Create(IDbConnectionFactory connectionFactory, string cacheFilePath)
+    {
+        ArgumentNullException.ThrowIfNull(connectionFactory);
+
+        if (string.IsNullOrWhiteSpace(cacheFilePath))
+            throw new ArgumentException("Cache file path is required.", nameof(cacheFilePath));
+
+        return new EtlPipelineBuilder()
+            .WithName($"{TableName}_Dev")
+            .WithSource(new JsonZstdFileSource(cacheFilePath, Schema))
+            .WithDestination(new DbBulkImportDestination(connectionFactory, TableName))
+            .Build();
+    }
+}