Rename the Claude Code session parser crate from dirigent_ant to
dirigent_anth. Binary targets renamed: ant → anth_bear, ant_usage →
anth_usage. Module claude_usage renamed to anth_usage throughout.
Also normalizes CRLF → LF line endings across touched files.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
