48b89552fe
Request: - Use the analyst skill to digest downloaded IPO archive data and start building an analysis model. Changes: - Add ipo_score_v0 as the first transparent stage-safe scoring rule set. - Add build_analysis_dataset.py to derive model features, scores, decision bands, and empirical D1 calibration from SQLite. - Generate analysis_model_v0_dataset.csv with 293 scored IPO rows and archived source paths. - Add a model calibration report documenting coverage, T0/T1 bucket performance, usage, and known gaps. - Record the initial model entry in the rule change log and document the command in README. Verification: - Ran py_compile for scripts/build_analysis_dataset.py. - Regenerated the analysis dataset and report with as-of 2026-06-15T13:00:00Z. - Checked CSV row count, source path coverage, and repo-relative path hygiene. - Ran git diff --cached --check. Next useful context: - v0 should be treated as a transparent baseline, with T1 high-score calibration strongest and middle buckets still non-monotonic. - T2 is excluded until a reliable grey-market source is approved.