feat: TUI improvements and consistency fixes

- Add product branding header to main menu (version + tagline)
- Fix backup success/error report formatting consistency
- Remove extra newline before error box in backup_exec
- Align backup and restore completion screens

bin/README.md

@@ -4,8 +4,8 @@ This directory contains pre-compiled binaries for the DB Backup Tool across mult
 
 ## Build Information
 - **Version**: 3.42.50
-- **Build Time**: 2026-01-17_12:41:47_UTC
-- **Git Commit**: 62d58c7
+- **Build Time**: 2026-01-17_15:15:55_UTC
+- **Git Commit**: 0e050b2
 
 ## Recent Updates (v1.1.0)
 - ✅ Fixed TUI progress display with line-by-line output