feat: export calibration fixture for progress detection
Export 15 labelled sessions (8 must-flag, 7 must-not-flag) from
opencode SQLite DB through scripts/export_progress_fixture.py into
tests/fixtures/progress/fixture.json.
- Reads opencode ~/.local/share/opencode/opencode.db
- Extracts tool calls per prototype's calls_of logic
- Applies must_flag/must_not_flag labels per the plan brief
- Content scrubbing: sha1[:8] for all args except detector targets
(filePath, path, offset, limit, command, pattern, output_mode, include, tmux_command)
- file_lines: {path: line_count|null} map for coverage detection
- landed: boolean per prototype (edit/write with non-empty diff, or
git commit with exit 0)
- Atlas window rule tracked per session label
- Pre-commit sensitive data scan
- Compact JSON format for size
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