Expand Aider appendix in primitives-matrix

[cobusgreyling]

Goal

docs/primitives-matrix.md mentions Aider in one line. Expand into a short appendix with scheduling and state conventions.

Files

• docs/primitives-matrix.md

Acceptance criteria

• New subsection Appendix: Aider CLI with scheduling, skills, state, verifier
• One Daily Triage copy-paste command for week-one report-only
• Link from appendix back to main matrix intro

Estimated time: ~30 minutes

[cobusgreyling]

Closed via merged PR #127 — thanks @roian6 for expanding the Aider appendix in docs/primitives-matrix.md. ✅