Refactor Study Desk application structure

audit-results/VERIFICATION_LOG.md

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+# Verification Log
+
+Chronological record of every command run, its outcome, and classification (baseline / environment / possible defect).
+
+## Environment notes
+
+- OS: Windows, shell: bash (git-bash)
+- `node_modules` was **absent** at audit start → `npm test` initially failed with `'vitest' is not recognized`. This is an environment condition, not a repo defect. `npm ci` completed successfully during the first audit session (518 packages present).
+- No existing application database (`dev.db*`) exists anywhere in the repo — no real user data to protect; the migration-chain test uses a brand-new temp DB under `audit-results/tmp`.
+- `src/generated/prisma/` (tracked) hashed BEFORE any prisma command: `audit-results/tmp/generated-before.sha256`.
+
+## Entries
+
+| # | Time | Command | Result | Classification |
+|---|---|---|---|---|
+| 1 | session start | `git status --short` | clean; only `?? .reasonix/` and `?? audit-results/` untracked | baseline |
+| 2 | session start | `npm test` (first run, prior session) | FAILED: `'vitest' is not recognized` (no node_modules) | environment |
+| 3 | session start | `npm ci` (background, prior session) | completed; 518 packages in node_modules | environment |
+| 4 | 22:36 | `npx prisma validate` | PASS — "The schema at prisma\schema.prisma is valid" (exit 0) | baseline |
+| 5 | 22:36 | `npm test` | PASS — 6 files, 30 tests, all green (arcade ×20, spacedRepetition ×10) | baseline |
+| 6 | 22:37 | `npm run lint` | 28 problems: 9 errors, 19 warnings (react-hooks/set-state-in-effect errors + unused-vars warnings). All pre-existing; matches AGENTS.md known baseline. | baseline |
+| 7 | 22:37 | `npm run build` (background) | PASS — route table emitted, no compile errors | baseline |
+| 8 | 22:38 | `DATABASE_URL=file:./audit-results/tmp/audit-migration.db npx prisma migrate deploy` | PASS — all 4 migrations applied to brand-new temp DB | baseline |
+| 9 | 22:38 | `sha256sum -c audit-results/tmp/generated-before.sha256` | PASS — every generated Prisma file byte-identical (all ": OK") | baseline |
+| 10 | 22:38 | `git status --short` | only untracked `.reasonix/`, `audit-results/`; no tracked modifications | baseline |
+| 11 | 22:38 | `git diff --check` | clean (no whitespace errors) | baseline |
+| 12 | 22:40 | `git log --all --oneline -- prisma/migrations/` + `git show 7af0935 --stat` | Confirms drift: commit 7af0935 changed `prisma/schema.prisma` (+31) and `dev.db` (139264→155648 bytes) with **no migration**; `dev.db` present in 8 commits of history | possible defect (FIN-01, FIN-42) |
+| 13 | 22:41 | `node audit-results/tmp/inspect-db.cjs audit-results/tmp/audit-migration.db` | Temp DB (built solely by `migrate deploy`) has **no** `MaterialGroup` table and **no** `groupId` column on Deck/QuizSet/ShareLink | possible defect (FIN-01) |
+| 14 | 22:42 | `node audit-results/tmp/reproduce-drift.cjs` | Prisma-shaped queries fail: `no such column: Deck.groupId`, `no such table: MaterialGroup`, `no such column: ShareLink.groupId` — fresh-deploy breakage proven | possible defect (FIN-01) |
+| 15 | 22:45 | `node --check audit-results/tmp/inspect-db.cjs && node --check audit-results/tmp/reproduce-drift.cjs` | diagnostic scripts syntax-valid | baseline |
+| 16 | 22:50 | `node audit-results/tmp/validate-findings.cjs` | `FINDINGS.json` VALID JSON — 53 findings: 2 Critical, 5 High, 18 Medium, 25 Low, 3 Observation; no duplicate ids | baseline |
+| 17 | 23:00 | `git status --short` + `git diff --check` (final) | Only untracked `.reasonix/`, `audit-results/`; no tracked file modified; diff clean | baseline |
+
+## Classification legend
+
+- **baseline** — repository behaves as expected; recorded for reference.
+- **environment** — failure caused by local machine state, not repo code.
+- **possible defect** — outcome may indicate a repo defect; investigated further in findings.