rolls the (c) 2022-2025 banner to 2022-2026 across all go files, the
startup banner in sif.go, and the header-check workflow's expected
format. comment-only, nothing else changes.
- Add output package with colored prefixes and module loggers
- Each module gets unique background color based on name hash
- Add spinner for indeterminate operations
- Add progress bar for known-count operations
- Update all scan files to use ModuleLogger pattern
- Add clean PrintSummary for scan completion
vmfunc