[AZ-369] Refactor C16: move inline DTOs out of Program.cs

Move 5 cross-component DTOs (GetSatelliteTilesResponse, SatelliteTile,
SaveResult, DownloadTileResponse, RequestRegionRequest) to
SatelliteProvider.Common/DTO/. Keep UploadImageRequest in the API
project under SatelliteProvider.Api.DTOs (IFormFile depends on
Microsoft.AspNetCore.Http; pulling it into Common would force an
ASP.NET framework reference into the foundation layer and break the
module-layout "Common: Imports from: (none)" invariant). Move
ParameterDescriptionFilter to SatelliteProvider.Api.Swagger.

Program.cs shrinks from 366 to 257 lines and now contains only
endpoint wiring (AC-1). JSON wire shape and Swagger schema names are
preserved (AC-2). 84 unit + full integration suite green (AC-3).

Co-authored-by: Cursor <cursoragent@cursor.com>

SatelliteProvider.Api/Program.cs

@@ -1,8 +1,9 @@
-using System.ComponentModel.DataAnnotations;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.OpenApi.Models;
 using Swashbuckle.AspNetCore.SwaggerGen;
 using SatelliteProvider.Api;
+using SatelliteProvider.Api.DTOs;
+using SatelliteProvider.Api.Swagger;
 using SatelliteProvider.DataAccess;
 using SatelliteProvider.DataAccess.Repositories;
 using SatelliteProvider.Common.Configs;
@@ -254,113 +255,3 @@ async Task<IResult> GetRoute(Guid id, IRouteService routeService)
 
     return Results.Ok(route);
 }
-
-public record GetSatelliteTilesResponse
-{
-    public List<SatelliteTile> Tiles { get; set; } = new();
-}
-
-public record SatelliteTile
-{
-    public string TileId { get; set; } = string.Empty;
-    public byte[] ImageData { get; set; } = Array.Empty<byte>();
-    public double Lat { get; set; }
-    public double Lon { get; set; }
-    public int ZoomLevel { get; set; }
-}
-
-public record UploadImageRequest
-{
-    [Required]
-    public DateTime Timestamp { get; set; }
-    
-    [Required]
-    public IFormFile? Image { get; set; }
-    
-    [Required]
-    public double Lat { get; set; }
-    
-    [Required]
-    public double Lon { get; set; }
-    
-    [Required]
-    public double Height { get; set; }
-    
-    [Required]
-    public double FocalLength { get; set; }
-    
-    [Required]
-    public double SensorWidth { get; set; }
-    
-    [Required]
-    public double SensorHeight { get; set; }
-}
-
-public record SaveResult
-{
-    public bool Success { get; set; }
-    public string? Exception { get; set; }
-}
-
-public record DownloadTileResponse
-{
-    public Guid Id { get; set; }
-    public int ZoomLevel { get; set; }
-    public double Latitude { get; set; }
-    public double Longitude { get; set; }
-    public double TileSizeMeters { get; set; }
-    public int TileSizePixels { get; set; }
-    public string ImageType { get; set; } = string.Empty;
-    public string? MapsVersion { get; set; }
-    public int? Version { get; set; }
-    public string FilePath { get; set; } = string.Empty;
-    public DateTime CreatedAt { get; set; }
-    public DateTime UpdatedAt { get; set; }
-}
-
-public record RequestRegionRequest
-{
-    [Required]
-    public Guid Id { get; set; }
-    
-    [Required]
-    public double Latitude { get; set; }
-    
-    [Required]
-    public double Longitude { get; set; }
-    
-    [Required]
-    public double SizeMeters { get; set; }
-    
-    [Required]
-    public int ZoomLevel { get; set; } = 18;
-    
-    public bool StitchTiles { get; set; } = false;
-}
-
-public class ParameterDescriptionFilter : IOperationFilter
-{
-    public void Apply(OpenApiOperation operation, OperationFilterContext context)
-    {
-        if (operation.Parameters == null) return;
-
-        var parameterDescriptions = new Dictionary<string, string>
-        {
-            ["lat"] = "Latitude coordinate where image was captured",
-            ["lon"] = "Longitude coordinate where image was captured",
-            ["mgrs"] = "MGRS coordinate string",
-            ["squareSideMeters"] = "Square side size in meters",
-            ["Latitude"] = "Latitude coordinate of the tile center",
-            ["Longitude"] = "Longitude coordinate of the tile center",
-            ["ZoomLevel"] = "Zoom level for the tile (higher values = more detail)"
-        };
-
-        foreach (var parameter in operation.Parameters)
-        {
-            if (parameterDescriptions.TryGetValue(parameter.Name, out var description))
-            {
-                parameter.Description = description;
-            }
-        }
-    }
-}