Initial commit: Azure DevOps TUI client

A terminal-based user interface for browsing and managing Azure DevOps
work items. Features include:

- Browse work items with filtering by area, iteration, state, and type
- View work item details with markdown rendering
- Open work items in browser
- Create git branches from work items
- Update work item state
- Keyboard-driven navigation

🤖 Generated with [Claude Code](https://claude.ai/claude-code)

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

main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/samuelenocsson/devops-tui/cmd"
+)
+
+func main() {
+	if err := cmd.Execute(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+}