Nomad changes

packages/csharp/src/Kreuzberg/ExcelSheet.cs

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+// This file is auto-generated by alef — DO NOT EDIT.
+// alef:hash:4e15143f4af1ae8bafbdb1506ef057da924484c66a19483966333558ad437e75
+// To regenerate: alef generate
+// To verify freshness: alef verify --exit-code
+// Issues & docs: https://github.com/kreuzberg-dev/alef
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Kreuzberg;
+
+/// <summary>
+/// Single Excel worksheet.
+///
+/// Represents one sheet from an Excel workbook with its content
+/// converted to Markdown format and dimensional statistics.
+/// </summary>
+public sealed record ExcelSheet
+{
+    /// <summary>
+    /// Sheet name as it appears in Excel
+    /// </summary>
+    [JsonPropertyName("name")]
+    public required string Name { get; init; }
+
+    /// <summary>
+    /// Sheet content converted to Markdown tables
+    /// </summary>
+    [JsonPropertyName("markdown")]
+    public required string Markdown { get; init; }
+
+    /// <summary>
+    /// Number of rows
+    /// </summary>
+    [JsonPropertyName("row_count")]
+    public ulong RowCount { get; init; } = 0;
+
+    /// <summary>
+    /// Number of columns
+    /// </summary>
+    [JsonPropertyName("col_count")]
+    public ulong ColCount { get; init; } = 0;
+
+    /// <summary>
+    /// Total number of non-empty cells
+    /// </summary>
+    [JsonPropertyName("cell_count")]
+    public ulong CellCount { get; init; } = 0;
+
+    /// <summary>
+    /// Pre-extracted table cells (2D vector of cell values)
+    /// Populated during markdown generation to avoid re-parsing markdown.
+    /// null for empty sheets.
+    /// </summary>
+    [JsonPropertyName("table_cells")]
+    public List<List<string>>? TableCells { get; init; } = null;
+
+
+    /// <summary>
+    /// Parse a <see cref="ExcelSheet"/> from a JSON string.
+    /// </summary>
+    /// <exception cref="KreuzbergException">When the JSON cannot be deserialised.</exception>
+    public static ExcelSheet FromJson(string json)
+    {
+        try
+        {
+            return JsonSerializer.Deserialize<ExcelSheet>(json, JsonOptions)
+                ?? throw new KreuzbergException($"Failed to parse ExcelSheet from JSON: deserializer returned null");
+        }
+        catch (KreuzbergException)
+        {
+            throw;
+        }
+        catch (Exception e)
+        {
+            throw new KreuzbergException($"Failed to parse ExcelSheet from JSON: {e.Message}", e);
+        }
+    }
+
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault,
+        Converters = { new JsonStringEnumConverter(JsonNamingPolicy.SnakeCaseLower) },
+    };
+
+    /// <summary>Options for serializing config/input objects to FFI. Strips nulls
+    /// (nullable C# fields default to null and would override required Rust fields with
+    /// non-deserialisable nulls) but preserves explicit false/0 so caller intent is kept.</summary>
+    private static readonly JsonSerializerOptions JsonSerializationOptions = new()
+    {
+        DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
+        Converters = { new JsonStringEnumConverter(JsonNamingPolicy.SnakeCaseLower) },
+    };
+}