- Replaced the log preview with an interactive viewer supporting navigation, selection, expansion, and clipboard copy.
- Added log formatting helpers to wrap multi-line entries and parse timestamps for session boundary detection.
- Covered viewer selection, copy payload sanitization, expanded formatting, and timestamp parsing with new tests.
- Sanitized debug log lines by stripping ANSI/control codes, replacing tabs, and truncating to terminal width.
- Added formatting helper and unit tests covering sanitization, tab handling, and truncation.
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