TUI: Add detailed progress tracking with rolling speed and database count

- Add TUI-native detailed progress component (detailed_progress.go)
- Hide spinner when progress bar is shown for cleaner display
- Implement rolling window speed calculation (5-sec window, 100 samples)
- Add database count tracking (X/Y) for cluster restore operations
- Wire DatabaseProgressCallback to restore engine for multi-db progress

bin/README.md

@@ -4,8 +4,8 @@ This directory contains pre-compiled binaries for the DB Backup Tool across mult
 
 ## Build Information
 - **Version**: 3.42.34
-- **Build Time**: 2026-01-14_16:06:08_UTC
-- **Git Commit**: ba6e8a2
+- **Build Time**: 2026-01-14_16:19:00_UTC
+- **Git Commit**: 7711a20
 
 ## Recent Updates (v1.1.0)
 - ✅ Fixed TUI progress display with line-by-line output