kibi-decisions

Use when the person states a rule or decision (must, never, always, from now on, we decided), when a Kibi hook asks to confirm or warns about an edit to code that implements a firm requirement, when the Stop hook says source files changed but nothing was recorded, when kb_check quotes requirement_statement_unverified, or when a request conflicts with a recorded requirement or ADR. Covers reading firmness and origin, recording a person's rule as firm with origin.ref, superseding with a Why this changed section, the kb_compile_intent unresolved/reviewCandidates/conflictReviews loop, asking before overriding a firm rule, and putting decisions to the person as one numbered kibi signoff --questions view.