Add Shipyard & Fix ShipLocker

Update File handling
Update Journal handling
Update README.md

Pulsar/Features/Shipyard/ShipyardService.cs

@@ -0,0 +1,47 @@
+using Observatory.Framework.Files;
+
+namespace Pulsar.Features.Shipyard;
+
+public interface IShipyardService : IJournalHandler<ShipyardFile>;
+
+public class ShipyardService(ILogger<ShipyardService> logger, IOptions<PulsarConfiguration> options,
+    IEventHubContext hub) : IShipyardService
+{
+    public string FileName => FileHandlerService.ShipyardFileName;
+    public async Task<ShipyardFile> Get()   
+    {
+        var shipyardFile = Path.Combine(options.Value.JournalDirectory, FileName);
+
+        if (!FileHelper.ValidateFile(shipyardFile))
+        {
+            return new ShipyardFile();
+        }
+
+        await using var file = File.Open(shipyardFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+        var shipyard = await JsonSerializer.DeserializeAsync<ShipyardFile>(file);
+        if (shipyard != null) return shipyard;
+
+        logger.LogWarning("Failed to deserialize shipyard file {ShipyardFile}", shipyardFile);
+        return new ShipyardFile();
+    }
+
+    public async Task HandleFile(string path)
+    {
+        if (!FileHelper.ValidateFile(path))
+        {
+            return;
+        }
+
+        var file = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+        var shipyard = await JsonSerializer.DeserializeAsync<ShipyardFile>(file);
+
+        if (shipyard == null)
+        {
+            logger.LogWarning("Failed to deserialize status file {FilePath}", path);
+            return;
+        }
+
+        await hub.Clients.All.ShipyardUpdated(shipyard);
+    }
+
+}