Add Gitea registry support and fix cross-device archiving

- Update docker-compose.yml to reference Gitea registry image
- Add docker-publish.cmd for building and pushing to Gitea
- Fix ArchiveService to handle cross-device moves by falling back
  to copy+delete when input and archive are on different volumes

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -1,5 +1,6 @@
 services:
   discord-archive:
+    image: git.thecozycat.net/aj/discordarchivemanager:latest
     build: .
     volumes:
       - ./input:/app/input

docker-publish.cmd

@@ -0,0 +1,2 @@
+docker build -t git.thecozycat.net/aj/discordarchivemanager:latest .
+docker push git.thecozycat.net/aj/discordarchivemanager:latest

src/DiscordArchiveManager/Services/ArchiveService.cs

@@ -36,7 +36,7 @@ public class ArchiveService
         // Archive the JSON file
         var archivedJsonPath = Path.Combine(archivePath, jsonFileName);
         var uniqueJsonPath = GetUniquePath(archivedJsonPath);
-        File.Move(jsonFilePath, uniqueJsonPath);
+        MoveFile(jsonFilePath, uniqueJsonPath);
         _logger.LogInformation("Archived JSON file to {Path}", uniqueJsonPath);
 
         // Archive the _Files directory if it exists
@@ -45,7 +45,7 @@ public class ArchiveService
             var filesDirectoryName = Path.GetFileName(filesDirectory);
             var archivedFilesPath = Path.Combine(archivePath, filesDirectoryName);
             var uniqueFilesPath = GetUniquePath(archivedFilesPath);
-            Directory.Move(filesDirectory, uniqueFilesPath);
+            MoveDirectory(filesDirectory, uniqueFilesPath);
             _logger.LogInformation("Archived files directory to {Path}", uniqueFilesPath);
         }
 
@@ -152,6 +152,58 @@ public class ArchiveService
         }
     }
 
+    /// <summary>
+    /// Moves a file, falling back to copy+delete for cross-device moves.
+    /// </summary>
+    private static void MoveFile(string source, string destination)
+    {
+        try
+        {
+            File.Move(source, destination);
+        }
+        catch (IOException)
+        {
+            File.Copy(source, destination);
+            File.Delete(source);
+        }
+    }
+
+    /// <summary>
+    /// Moves a directory, falling back to copy+delete for cross-device moves.
+    /// </summary>
+    private static void MoveDirectory(string source, string destination)
+    {
+        try
+        {
+            Directory.Move(source, destination);
+        }
+        catch (IOException)
+        {
+            CopyDirectory(source, destination);
+            Directory.Delete(source, true);
+        }
+    }
+
+    /// <summary>
+    /// Recursively copies a directory.
+    /// </summary>
+    private static void CopyDirectory(string source, string destination)
+    {
+        Directory.CreateDirectory(destination);
+
+        foreach (var file in Directory.GetFiles(source))
+        {
+            var destFile = Path.Combine(destination, Path.GetFileName(file));
+            File.Copy(file, destFile);
+        }
+
+        foreach (var dir in Directory.GetDirectories(source))
+        {
+            var destDir = Path.Combine(destination, Path.GetFileName(dir));
+            CopyDirectory(dir, destDir);
+        }
+    }
+
     /// <summary>
     /// Gets a unique file/directory path by appending a number if the path already exists.
     /// </summary>