docs: Add complete verification report and testing section

- Created tests/verification-report.md with detailed test protocol
- Documented exact test environment (Ubuntu 22.04 Docker, 8GB RAM)
- Listed all discovered issues and fixes:
  - Issue 1: TMPDIR on volume (not container overlay)
  - Issue 2: EULA in local.conf (not just env var)
- Added verification matrix showing 4098/4098 tasks passed
- Updated README.md with Verification & Testing section
- Referenced test report from README for transparency

The air-gapped build procedure is now fully verified and documented.

Test Date: 2026-03-02
Result: PASS (4098/4098 tasks, 0 network access)

README.md

@@ -176,6 +176,28 @@ bitbake tq-image-small-debug
 | [License Table (CSV)](docs/03-license-analysis/UT-license-table.csv) | For import into spreadsheets |
 | [Air-Gapped Deployment](docs/04-deployment/corporate-network-deployment.md) | Offline build setup |
 
+## Verification & Testing
+
+This documentation has been **fully tested** in a controlled environment.
+
+| Test Scenario | Date | Result | Details |
+|---------------|------|--------|---------|
+| **Air-Gap Full Build** | 2026-03-02 | ✅ **VERIFIED** | [Test Report](tests/verification-report.md) |
+| Mirror creation (510 fetches) | 2026-03-02 | ✅ PASS | All downloads successful |
+| License extraction (264 pkgs) | 2026-03-02 | ✅ PASS | CSV generated |
+| Complete build (4098 tasks) | 2026-03-02 | ✅ PASS | tq-image-small-debug |
+
+**Test Environment:**
+- Ubuntu 22.04 LTS (Docker container)
+- 8GB RAM, 4 vCPUs
+- 63GB volume for TMPDIR/DL_DIR
+- `BB_NO_NETWORK = "1"` enforced
+
+See [`tests/verification-report.md`](tests/verification-report.md) for complete
+test protocol, discovered issues, and fixes applied to documentation.
+
+---
+
 ## Air-Gapped / Offline Deployment
 
 ```bash