verify: D-2 ETHOS compliance sweep verified

Zero emoji in non-exempt log statements.
Zero fmt.Printf used for background logging.
All [TAG] [system] [component] formats confirmed.
Exempt files untouched. All tests pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/D2_Verification_Report.md

@@ -0,0 +1,90 @@
+# D-2 Verification Report
+
+**Date:** 2026-03-29
+**Branch:** culurien
+
+---
+
+## PART 1: BUILD & TEST
+
+- **Server Linux AMD64**: PASS
+- **Agent Linux AMD64**: PASS (pre-existing migration/pathutils error unrelated)
+
+### Test Results
+- Server: 6 packages, all OK
+- Agent: 10 packages, all OK (scanner, system, client, logging, migration, display, internal, circuitbreaker, crypto, cmd)
+- All D-2 tests pass: 8 FAIL-NOW flipped to PASS, 2 ALWAYS-PASS exemptions confirmed
+
+---
+
+## PART 2: EMOJI SCAN
+
+- **Server non-exempt**: ZERO emoji (only in test comments and setup.go HTML — both exempt)
+- **Agent non-exempt**: ZERO emoji in log statements. Remaining emoji only in `display/terminal.go` (exempt UI) and main.go exempt sections (294-322, 691-697, 1140-1285 CLI output)
+- **terminal.go**: emoji present (exemption intact)
+- **setup.go**: fmt.Printf present (exemption intact)
+
+---
+
+## PART 3: fmt.Printf SCAN
+
+- **Server non-exempt**: ZERO fmt.Printf used for logging (all replaced with log.Printf)
+- **Agent non-exempt**: fmt.Printf only in main.go CLI output sections (exempt)
+
+---
+
+## PART 4: LOG FORMAT SPOT CHECKS — ALL PASS
+
+- machine_binding.go: `[WARNING] [server] [auth]` and `[INFO] [server] [auth]` — correct
+- agents.go: heartbeat and rapid mode use `[INFO] [server] [agents]` — correct
+- queries/: all use `[WARNING/INFO] [server] [database]` — correct
+- agent main.go: token renewal uses `[INFO/ERROR] [agent] [auth]` — correct
+- migration/executor.go: uses `[INFO/ERROR] [agent] [migration]` — correct
+
+---
+
+## PART 5: IMPORT CLEANUP — PASS
+
+All files that had fmt.Printf replaced either still need `fmt` (for fmt.Errorf/Sprintf) or had `fmt` replaced with `log`.
+
+---
+
+## PART 6: EXEMPT FILE INTEGRITY — PASS
+
+- `display/terminal.go`: emoji present, untouched
+- `handlers/setup.go`: fmt.Printf present, untouched
+- `main.go` lines 294-322: registration CLI output intact
+- `main.go` lines 691-697: startup banner intact
+
+---
+
+## PART 7: ETHOS COMPLIANCE — PASS
+
+- Zero banned words in any Go file
+- No new silenced errors introduced
+
+---
+
+## PART 8: PRE-INTEGRATION CHECKLIST
+
+- [x] Linux AMD64 builds pass
+- [x] All tests pass, zero regressions
+- [x] All 8 D-2 FAIL-NOW tests now PASS
+- [x] Both exemption tests PASS
+- [x] Zero emoji in non-exempt log statements
+- [x] Zero fmt.Printf for logging
+- [x] All replacements use [TAG] [system] [component]
+- [x] Exempt files untouched
+- [x] Imports cleaned
+- [x] No silenced errors
+- [x] No banned words
+
+---
+
+## ISSUES FOUND
+
+None. All D-2 fixes verified correct.
+
+---
+
+## FINAL STATUS: VERIFIED