Initial commit: Disaster recovery CLI tool

A Go-based CLI tool for recovering servers from backups to new cloud VMs.

Features:
- Multi-cloud support: Exoscale, Cloudscale, Hetzner Cloud
- Backup sources: Local filesystem, Hetzner Storage Box
- 6-stage restore pipeline with /etc whitelist protection
- DNS migration with safety checks and auto-rollback
- Dry-run by default, requires --yes to execute
- Cloud-init for SSH key injection

Packages:
- cmd/recover-server: CLI commands (recover, migrate-dns, list, cleanup)
- internal/providers: Cloud provider implementations
- internal/backup: Backup source implementations
- internal/restore: 6-stage restore pipeline
- internal/dns: Exoscale DNS management
- internal/ui: Prompts, progress, dry-run display
- internal/config: Environment and host configuration

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/ui/prompts.go

@@ -0,0 +1,100 @@
+package ui
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+// ConfirmAction asks for yes/no confirmation
+func ConfirmAction(message string) bool {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Printf("%s [y/N]: ", message)
+
+	response, err := reader.ReadString('\n')
+	if err != nil {
+		return false
+	}
+
+	response = strings.TrimSpace(strings.ToLower(response))
+	return response == "y" || response == "yes"
+}
+
+// ConfirmHostname requires typing the hostname to confirm
+func ConfirmHostname(hostname string) bool {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Printf("\n⚠️  DESTRUCTIVE OPERATION ⚠️\n")
+	fmt.Printf("This will modify DNS for: %s\n", hostname)
+	fmt.Printf("Type the hostname exactly to confirm: ")
+
+	response, err := reader.ReadString('\n')
+	if err != nil {
+		return false
+	}
+
+	response = strings.TrimSpace(response)
+	return response == hostname
+}
+
+// ConfirmRecovery requires confirmation for recovery operation
+func ConfirmRecovery(host, source, target string) bool {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Printf("\n=== RECOVERY CONFIRMATION ===\n")
+	fmt.Printf("Host:      %s\n", host)
+	fmt.Printf("Source:    %s\n", source)
+	fmt.Printf("Target:    %s\n", target)
+	fmt.Printf("\nThis will create a new VM and restore data.\n")
+	fmt.Printf("Type 'RECOVER' to proceed: ")
+
+	response, err := reader.ReadString('\n')
+	if err != nil {
+		return false
+	}
+
+	response = strings.TrimSpace(response)
+	return response == "RECOVER"
+}
+
+// SelectOption presents options and returns selection
+func SelectOption(prompt string, options []string) (int, error) {
+	reader := bufio.NewReader(os.Stdin)
+
+	fmt.Println(prompt)
+	for i, opt := range options {
+		fmt.Printf("  %d. %s\n", i+1, opt)
+	}
+	fmt.Print("Selection: ")
+
+	var selection int
+	_, err := fmt.Fscanf(reader, "%d\n", &selection)
+	if err != nil {
+		return -1, err
+	}
+
+	if selection < 1 || selection > len(options) {
+		return -1, fmt.Errorf("invalid selection")
+	}
+
+	return selection - 1, nil
+}
+
+// PrintError prints an error message in red
+func PrintError(format string, args ...interface{}) {
+	fmt.Printf("\033[31mError: "+format+"\033[0m\n", args...)
+}
+
+// PrintSuccess prints a success message in green
+func PrintSuccess(format string, args ...interface{}) {
+	fmt.Printf("\033[32m✓ "+format+"\033[0m\n", args...)
+}
+
+// PrintWarning prints a warning message in yellow
+func PrintWarning(format string, args ...interface{}) {
+	fmt.Printf("\033[33m⚠ "+format+"\033[0m\n", args...)
+}
+
+// PrintInfo prints an info message in blue
+func PrintInfo(format string, args ...interface{}) {
+	fmt.Printf("\033[34mℹ "+format+"\033[0m\n", args...)
+}