chore: initial commit of TaskTracker project

Existing ASP.NET API with vanilla JS SPA, WindowWatcher, Chrome extension, and MCP server.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

WindowWatcher/WindowWatcherOptions.cs

@@ -0,0 +1,10 @@
+namespace WindowWatcher;
+
+public class WindowWatcherOptions
+{
+    public const string SectionName = "WindowWatcher";
+
+    public string ApiBaseUrl { get; set; } = "http://localhost:5200";
+    public int PollIntervalMs { get; set; } = 2000;
+    public int DebounceMs { get; set; } = 3000;
+}