Initial commit: Database Backup Tool v1.1.0

- PostgreSQL and MySQL support
- Interactive TUI with fixed menu navigation
- Line-by-line progress display
- CPU-aware parallel processing
- Cross-platform build support
- Configuration settings menu
- Silent mode for TUI operations

main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"dbbackup/cmd"
+	"dbbackup/internal/config"
+	"dbbackup/internal/logger"
+)
+
+// Build information (set by ldflags)
+var (
+	version   = "dev"
+	buildTime = "unknown"
+	gitCommit = "unknown"
+)
+
+func main() {
+	// Create context that cancels on interrupt
+	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer cancel()
+
+	// Initialize configuration
+	cfg := config.New()
+	
+	// Set version information
+	cfg.Version = version
+	cfg.BuildTime = buildTime
+	cfg.GitCommit = gitCommit
+	
+	// Optimize CPU settings if auto-detect is enabled
+	if cfg.AutoDetectCores {
+		if err := cfg.OptimizeForCPU(); err != nil {
+			slog.Warn("CPU optimization failed", "error", err)
+		}
+	}
+
+	// Initialize logger
+	log := logger.New(cfg.LogLevel, cfg.LogFormat)
+
+	// Execute command
+	if err := cmd.Execute(ctx, cfg, log); err != nil {
+		log.Error("Application failed", "error", err)
+		os.Exit(1)
+	}
+}