docs: add XML documentation and ConfigManager implementation plans

Add comprehensive XML documentation (param/returns tags) across 132 source
files to improve IntelliSense and API discoverability. Include ConfigManager
design documents and implementation plans for phases 1-9.

NEW/src/JdeScoping.DataAccess/Repositories/LotFinderRepository.cs

@@ -21,6 +21,9 @@ public partial class LotFinderRepository : ILotFinderRepository
     /// <summary>
     /// Initializes a new instance of the <see cref="LotFinderRepository"/> class.
     /// </summary>
+    /// <param name="connectionFactory">The database connection factory.</param>
+    /// <param name="logger">The logger instance.</param>
+    /// <param name="options">The data access options.</param>
     public LotFinderRepository(
         IDbConnectionFactory connectionFactory,
         ILogger<LotFinderRepository> logger,

NEW/src/JdeScoping.DataAccess/Services/SearchProcessor.cs

@@ -27,6 +27,12 @@ public sealed class SearchProcessor : ISearchProcessor
     /// <summary>
     /// Initializes a new instance of SearchProcessor.
     /// </summary>
+    /// <param name="connectionFactory">The database connection factory.</param>
+    /// <param name="queryBuilder">The search query builder.</param>
+    /// <param name="traversalService">The work order traversal service.</param>
+    /// <param name="misQueryBuilder">The MIS query builder.</param>
+    /// <param name="options">The search processing configuration options.</param>
+    /// <param name="logger">The logger instance.</param>
     public SearchProcessor(
         IDbConnectionFactory connectionFactory,
         ISearchQueryBuilder queryBuilder,