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+---
+phase: 7
+slug: dkv-fleet-module
+status: draft
+nyquist_compliant: false
+wave_0_complete: false
+created: 2026-06-26
+---
+
+# Phase 7 — Validation Strategy
+
+> Per-phase validation contract for feedback sampling during execution.
+
+---
+
+## Test Infrastructure
+
+| Property | Value |
+|----------|-------|
+| **Framework** | Vitest 4.1.9 (apps/web); no test framework in apps/api |
+| **Config file** | `apps/web/vitest.config.ts` |
+| **Quick run command** | `pnpm --filter @tessera/web test` |
+| **Full suite command** | `pnpm --filter @tessera/web test && pnpm --filter @tessera/api type-check` |
+| **Estimated runtime** | ~30 seconds |
+
+---
+
+## Sampling Rate
+
+- **After every task commit:** Run `pnpm --filter @tessera/web test`
+- **After every plan wave:** Run `pnpm --filter @tessera/web test && pnpm --filter @tessera/api type-check`
+- **Before `/gsd-verify-work`:** Full suite must be green + manual PDF parse inspection + manual Excel file inspection
+- **Max feedback latency:** ~30 seconds
+
+---
+
+## Per-Task Verification Map
+
+| Task ID | Plan | Wave | Requirement | Threat Ref | Secure Behavior | Test Type | Automated Command | File Exists | Status |
+|---------|------|------|-------------|------------|-----------------|-----------|-------------------|-------------|--------|
+| 07-01-01 | 01 | 0 | DKV-02 | A2 | PDF parse output inspected manually | Manual | — | ❌ Wave 0 | ⬜ pending |
+| 07-01-02 | 01 | 0 | — | — | ScheduleModule registered in AppModule | Manual type-check | `pnpm --filter @tessera/api type-check` | ✅ | ⬜ pending |
+| 07-02-01 | 02 | 1 | DKV-01 | — | Inbox polling returns attachments | Manual integration | — | ❌ Wave 0 | ⬜ pending |
+| 07-02-02 | 02 | 1 | DKV-04 | — | Excel 5-column buffer generated | Manual (open .xlsx) | — | — | ⬜ pending |
+| 07-03-01 | 03 | 1 | DKV-03 | — | Vehicle CRUD table renders | unit | `pnpm --filter @tessera/web test` | ❌ Wave 0 | ⬜ pending |
+| 07-03-02 | 03 | 1 | DKV-05 | — | SMTP settings form saves + reads | unit | `pnpm --filter @tessera/web test` | ❌ Wave 0 | ⬜ pending |
+
+*Status: ⬜ pending · ✅ green · ❌ red · ⚠️ flaky*
+
+---
+
+## Wave 0 Requirements
+
+- [ ] `apps/api/src/dkv/dkv-parser.validate.ts` — manual validation script: parse `user-files/invoice.pdf`, print structured output, verify vehicle block regex
+- [ ] `apps/web/src/app/(portal)/modules/dkv-fleet/settings/components/VehicleTable.test.tsx` — covers DKV-03 (vehicle CRUD table)
+- [ ] `apps/web/src/app/(portal)/settings/general/smtp/smtp-settings.test.tsx` — covers DKV-05 (SMTP settings form)
+
+---
+
+## Manual-Only Verifications
+
+| Behavior | Requirement | Why Manual | Test Instructions |
+|----------|-------------|------------|-------------------|
+| Inbox polling detects DKV emails | DKV-01 | Requires live IMAP/Exchange inbox | Configure module with test inbox, trigger "Jetzt prüfen", verify email detected and PDF downloaded |
+| PDF parser extracts correct data | DKV-02 | No API test framework; PDF content is binary | Run Wave 0 validation script against `user-files/invoice.pdf`; inspect 27 vehicles × transactions in output |
+| Excel export correct format | DKV-04 | Requires human visual inspection in Excel | Open generated `.xlsx`, verify 5 columns (Lieferdatum, Fahrzeug, Fahrer, Ort, Kilometerstand), German date format `TT.MM.JJJJ` |
+| SMTP delivery | DKV-04 | Requires live SMTP server | Trigger export with test SMTP config, verify email received with xlsx attachment |
+
+---
+
+## Validation Sign-Off
+
+- [ ] All tasks have `<automated>` verify or Wave 0 dependencies
+- [ ] Sampling continuity: no 3 consecutive tasks without automated verify
+- [ ] Wave 0 covers all MISSING references
+- [ ] No watch-mode flags
+- [ ] Feedback latency < 30s
+- [ ] `nyquist_compliant: true` set in frontmatter
+
+**Approval:** pending