0.3.0

fix: show loading message instead of "no matches" while parsing

The log table was rendered with zero entries during parsing and showed
"No log entries match the current filters", which looked like a failure
on large files. Show "Loading log entries..." while the workspace is
parsing, and compute filtered entries during render so freshly parsed
entries don't briefly flash the no-match message.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude <noreply@anthropic.com>