Update gestione script LUA:

- cartella con script
- conf x scelta
- gestione script letti 1 sola volta all'avvio

MP.IOC/Services/LuaScriptProvider.cs

@@ -0,0 +1,43 @@
+using Microsoft.Extensions.Options;
+using MP.Core.Conf;
+
+namespace MP.IOC.Services
+{
+    public sealed class LuaScriptProvider
+    {
+        private readonly Dictionary<string, string> _scripts;
+
+        public IReadOnlyDictionary<string, string> Scripts => _scripts;
+
+        public LuaScriptProvider(
+            IOptions<RedisScriptsConfig> cfg,
+            IWebHostEnvironment env)
+        {
+            _scripts = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+
+            foreach (var kv in cfg.Value.Scripts)
+            {
+                var name = kv.Key;
+                var relativePath = kv.Value;
+
+                var fullPath = Path.Combine(env.ContentRootPath, relativePath);
+
+                if (!File.Exists(fullPath))
+                    throw new FileNotFoundException($"Script Lua non trovato: {fullPath}");
+
+                var content = File.ReadAllText(fullPath);
+
+                _scripts[name] = content;
+            }
+        }
+
+        public string Get(string name)
+        {
+            if (!_scripts.TryGetValue(name, out var script))
+                throw new KeyNotFoundException($"Script Lua '{name}' non trovato.");
+
+            return script;
+        }
+    }
+
+}