Restructure solution layout by module

src/Scheduler/StellaOps.Scheduler.WebService/Options/SchedulerOptions.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+
+namespace StellaOps.Scheduler.WebService.Options;
+
+/// <summary>
+/// Scheduler host configuration defaults consumed at startup for cross-cutting concerns
+/// such as plug-in discovery.
+/// </summary>
+public sealed class SchedulerOptions
+{
+    public PluginOptions Plugins { get; set; } = new();
+
+    public void Validate()
+    {
+        Plugins.Validate();
+    }
+
+    public sealed class PluginOptions
+    {
+        /// <summary>
+        /// Base directory resolving relative plug-in paths. Defaults to solution root.
+        /// </summary>
+        public string? BaseDirectory { get; set; }
+
+        /// <summary>
+        /// Directory containing plug-in binaries. Defaults to <c>plugins/scheduler</c>.
+        /// </summary>
+        public string? Directory { get; set; }
+
+        /// <summary>
+        /// Controls whether sub-directories are scanned for plug-ins.
+        /// </summary>
+        public bool RecursiveSearch { get; set; } = false;
+
+        /// <summary>
+        /// Ensures the plug-in directory exists on startup.
+        /// </summary>
+        public bool EnsureDirectoryExists { get; set; } = true;
+
+        /// <summary>
+        /// Explicit plug-in discovery patterns (supports globbing).
+        /// </summary>
+        public IList<string> SearchPatterns { get; } = new List<string>();
+
+        /// <summary>
+        /// Optional ordered plug-in assembly names (without extension).
+        /// </summary>
+        public IList<string> OrderedPlugins { get; } = new List<string>();
+
+        public void Validate()
+        {
+            foreach (var pattern in SearchPatterns)
+            {
+                if (string.IsNullOrWhiteSpace(pattern))
+                {
+                    throw new InvalidOperationException("Scheduler plug-in search patterns cannot contain null or whitespace entries.");
+                }
+            }
+
+            foreach (var assemblyName in OrderedPlugins)
+            {
+                if (string.IsNullOrWhiteSpace(assemblyName))
+                {
+                    throw new InvalidOperationException("Scheduler ordered plug-in entries cannot contain null or whitespace values.");
+                }
+            }
+        }
+    }
+}