Add native Windows support (#91)

- Native Windows daemon using TCP loopback endpoints
- Direct-mode fallback for CLI/daemon compatibility
- Comment operations over RPC
- PowerShell installer script
- Go 1.24 requirement
- Cross-OS testing documented

Co-authored-by: danshapiro <danshapiro@users.noreply.github.com>
Amp-Thread-ID: https://ampcode.com/threads/T-c6230265-055f-4af1-9712-4481061886db
Co-authored-by: Amp <amp@ampcode.com>

cmd/bd/list.go

@@ -163,7 +163,7 @@ var listCmd = &cobra.Command{
 		for _, issue := range issues {
 			// Load labels for display
 			labels, _ := store.GetLabels(ctx, issue.ID)
-			
+
 			fmt.Printf("%s [P%d] [%s] %s\n", issue.ID, issue.Priority, issue.IssueType, issue.Status)
 			fmt.Printf("  %s\n", issue.Title)
 			if issue.Assignee != "" {