fix: dynamic timeouts for large archives + use WorkDir for disk checks

- CheckDiskSpace now uses GetEffectiveWorkDir() instead of BackupDir
- Dynamic timeout calculation based on file size:
  - diagnoseClusterArchive: 5 + (GB/3) min, max 60 min
  - verifyWithPgRestore: 5 + (GB/5) min, max 30 min
  - DiagnoseClusterDumps: 10 + (GB/3) min, max 120 min
  - TUI safety checks: 10 + (GB/5) min, max 120 min
- Timeout vs corruption differentiation (no false CORRUPTED on timeout)
- Streaming tar listing to avoid OOM on large archives

For 119GB archives: ~45 min timeout instead of 5 min false-positive

bin/README.md

@@ -4,8 +4,8 @@ This directory contains pre-compiled binaries for the DB Backup Tool across mult
 
 ## Build Information
 - **Version**: 3.42.10
-- **Build Time**: 2026-01-12_08:50:35_UTC
-- **Git Commit**: b1f8c6d
+- **Build Time**: 2026-01-12_14:25:53_UTC
+- **Git Commit**: d19c065
 
 ## Recent Updates (v1.1.0)
 - ✅ Fixed TUI progress display with line-by-line output