[KM-652] refactor(db): align analysis-family models to the dedorch schema

[KM-652] fix(report,chat): align report gate with readiness + cleanup

[KM-652] fix(readiness,ps): substantive = successful analysis; PS needs explicit goal

[KM-652] feat(analysis): #10 data-source binding (analysis-owned join table)

[KM-652] fix(report): connect record->report->state loop + readiness refinement

[KM-652] feat(report): is_report_ready signal + wire into help dispatch

[KM-644] feat(report): button-triggered report generator + API