BACKLOG: mark DC-006 done, document DC-005 latent path bug

DC-006 marked done with 25-test result summary + 904/904 test note.
DC-005 annotated with two critical notes:
  - Latent require-path bug in depth-2 routes (mechanical 3->2 fix needed in ~22 files)
  - Branch state vs origin/main divergence (need coordinated merge, not silent FF)

BACKLOG.md

@@ -40,11 +40,15 @@
 - **status:** in-progress
 - **owner:** krystie
 - **details:** 40+ JS files at `dashcaddy-api/` root level (auth-manager.js, credential-manager.js, etc.). Move into organized subdirs under `src/` (e.g., `src/managers/`, `src/security/`, `src/docker/`). Update all require() paths. This is a big refactor — run tests after.
+- **latent bug (discovered during DC-006, NOT yet fixed):** The DC-005 refactor's path-rewrite script left depth-2 route files (`routes/auth/*.js`, `routes/recipes/*.js`, `routes/apps/*.js`, `routes/arr/*.js`, `routes/config/*.js`) with `'../../../src/...'` — **3 levels up instead of 2**, which goes above `dashcaddy-api/` entirely. Required path should be `'../../src/...'` for depth-2 routes. Tests didn't catch this because no test previously imported any depth-2 route (only depth-1 routes like `routes/services.js` were tested). Confirmed-broken imports (with file → offending line): `routes/auth/totp.js:2` (FIXED in DC-006 commit), `routes/auth/keys.js:2`, `routes/auth/sso-gate.js:2-3`, `routes/auth/session-handlers.js:2-3`, `routes/recipes/manage.js:2-3`, `routes/recipes/deploy.js:2-3`, `routes/recipes/index.js:2-3`, `routes/config/assets.js:2-4`, `routes/config/settings.js:2-4`, `routes/config/backup.js:2-4`, `routes/apps/restore.js:2`, `routes/apps/compose.js:2-3`, `routes/apps/deploy.js:2-5`, `routes/apps/helpers.js:2-3`, `routes/apps/templates.js:2-3`, `routes/apps/removal.js:2-3`, `routes/arr/detect.js:2`, `routes/arr/smart-connect.js:2`, `routes/arr/credentials.js:2-3`, `routes/arr/helpers.js:2`, `routes/arr/config.js:2-5`, `routes/arr/plex.js:2`. The fix is mechanical (3 → 2 levels) but touches ~22 files — should be its own PR/commit for clean review.
+- **branch state:** Work is complete on `krystie-improvements` (HEAD `7bc2a20`) with 879/879 tests passing on the branch. **NOT YET ON MAIN** — `origin/main` has since moved past the refactor with ~28 newer commits (DC-008/009/010/011, TOTP 4-part recovery, monitoring widget, unified logger, response-shape standardization). `git diff origin/main..HEAD` is 187 files / 10823 insertions / 3187 deletions — large enough to need careful coordination, not silent fast-forward. See Discord/Sami for proposed merge plan.
 
 ### DC-006: Add integration test for TOTP auth flow
-- **status:** in-progress
+- **status:** done
 - **owner:** krystie
 - **details:** End-to-end test: no token → 401, wrong token → 403, valid TOTP → session token → authenticated request succeeds. Cover the full `/api/auth/check` → session → endpoint flow.
+- **result:** Added `dashcaddy-api/__tests__/routes/auth.totp.routes.test.js` — 25 tests, all passing. Covers: GET `/api/totp/config`, POST `/api/totp/setup` (generate + normalize + reject invalid Base32), POST `/api/totp/verify-setup` (missing/bad/no-pending/valid-code paths), POST `/api/totp/verify` (login — 400/400/401/200), GET `/api/totp/check-session` (passthrough when disabled + 401 no-session + 200 valid-session — the BACKLOG "no token → 401 / authenticated request succeeds" pair), POST `/api/totp/disable` (400/401/200), POST `/api/totp/config` (valid/invalid/never-disables), plus the full end-to-end flow setup→login→check-session→disable and an otplib-not-stubbed sanity check. Uses real `otplib` for code generation (real TOTP math), mocks `credentialManager`/`session`/`totpConfig`/`saveTotpConfig` only. Full suite: 904/904 pass (879 baseline + 25 new). ESLint clean for the new file.
+- **side-effect (DC-005 latent bug fix):** While writing the test I discovered `routes/auth/totp.js` had broken require paths from the DC-005 refactor (`'../../../src/utilities/errors'` was 3 levels up from `routes/auth/` — wrong by 1). The test couldn't even load the route without this fix. Fixed in this commit (`'../../src/utilities/errors'` and `'../../src/utils/responses'`). **Same depth bug exists in other depth-2 route files — see DC-005 note below.**
 
 ### DC-007: Add tests for untested modules
 - **status:** done