Adds the seven Plan 10 conventions to CLAUDE.md (interfaces in core-shared,
spans at bind time, throw-site capture, PII rules, three Sentry projects,
orthogonal binding). Adds an "Instrumentation conventions" section to
AGENTS.md with repo constructor/method patterns, capture-rules table,
boundary allowlist, and test rules. Appends §16 "Instrumentation & error
capture" to vertical-feature-spec.md (the spec already has 15 sections,
so appending rather than slotting in as §10 to avoid renumbering).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Danijel Martinek
c640cdf6c8