Send the MIE unblock package (WebChart API contract questions) + record answers

[Taleef7]

Context

E12 PR-2c (live WebChart HTTP transport), E15 PR-3, incremental-eval design, auth/SSO, and PHI posture ALL depend on answers only MIE (Doug / Dave Carlson) can give. The full 18-question package is committed at docs/MIE_INTEGRATION_QUESTIONS_2026-07-09.md (created in the roadmap docs PR). The dev-DB proof artifacts to attach: output of cd backend-ts && pnpm evaluate:webchart-devdb (per-measure outcome table over MIE's own dev DB) and docs/TERMINOLOGY_AUDIT_2026-07-08.md.

What to do

1. Owner sends the questions doc + the two attachments to Doug/Dave Carlson.
2. As answers land, record each answer inline in the questions doc (dated), and update the affected issues (link them: the PR-2c issue E12 PR-2c: live WebChart HTTP transport (finalize against the real API contract) #262, the incremental-eval issue Incremental/delta batch evaluation (design gated on MIE change-signal answer) #263, the auth issue Auth for production: resolve the SSO fork (blocked on MIE) #265).
3. When section A (API contract, Q1–Q8) is answered, remove blocked-on-mie from the PR-2c issue (E12 PR-2c: live WebChart HTTP transport (finalize against the real API contract) #262).

Acceptance criteria

• Package sent (date recorded in this issue)
• Answers recorded in docs/MIE_INTEGRATION_QUESTIONS_2026-07-09.md as they arrive
• Dependent issues updated/unblocked as their gating questions are answered

How to verify

1. Confirm this issue has a comment recording the date the package (questions doc + pnpm evaluate:webchart-devdb output + docs/TERMINOLOGY_AUDIT_2026-07-08.md) was sent to Doug/Dave Carlson.
2. Confirm docs/MIE_INTEGRATION_QUESTIONS_2026-07-09.md has dated inline answers as they arrive.
3. Confirm the PR-2c issue (E12 PR-2c: live WebChart HTTP transport (finalize against the real API contract) #262), the incremental-eval issue (Incremental/delta batch evaluation (design gated on MIE change-signal answer) #263), and the auth issue (Auth for production: resolve the SSO fork (blocked on MIE) #265) are updated (labels/comments) as their gating questions get answered — and that blocked-on-mie is removed from the PR-2c issue (E12 PR-2c: live WebChart HTTP transport (finalize against the real API contract) #262) once section A (Q1–Q8) is answered.

Effort & dependencies

Effort: 0.5 day + ongoing. Dependencies: the roadmap docs PR (doc must exist first).

Hard rules (repo-wide, non-negotiable)

• CQL Outcome Status is the SOLE compliance authority (ADR-008). Nothing you build may set, override, or shortcut it.
• Every state change writes an audit_events row. No exceptions.
• NO new npm dependencies unless the issue explicitly approves one; schema/DDL changes are owner-gated (Taleef only — stop and ask).
• Verify before claiming done: cd backend-ts && pnpm typecheck && pnpm test (expect ~1057+ pass / 1 pg-skip / 0 fail) and, if frontend touched, cd frontend && npm run lint && npm run build.
• Update affected docs (ARCHITECTURE/DATA_MODEL/MEASURES/DECISIONS/DEPLOY + JOURNAL.md entry) in the same PR. Conventional commits. Feature branch + PR; owner merges.

Links

• docs/ROADMAP_2026-07-09.md (lands in the roadmap docs PR)
• docs/MIE_INTEGRATION_QUESTIONS_2026-07-09.md (created in the roadmap docs PR)
• docs/TERMINOLOGY_AUDIT_2026-07-08.md