fix(onboarding): apply hypothesis/vocabulary review decisions (ISO13485, patch-policy rationale, summary)

Two reviewed knowledge decisions (2026-06-28) + the deferred cosmetic counter, before #59.

1. ISO13485 removed from the incident_management hypothesis. ISO 13485 CAPA / quality-safety incident
   handling is NOT security incident management — the mapping was too broad and would seed false
   hypotheses for the empirical loop. A dedicated manage_quality_and_safety_incidents capability can come
   later IF a target needs it; not forced now. (ISO27001/TISAX/IEC62443 keep incident_management.)

2. patch_policy_doc -> secure_signed_update_distribution stays `partial`, but the curated rationale is
   sharpened: "indicates update governance, does not evidence signed distribution" (a patch policy is not
   proof of SIGNED distribution). New optional SignalMapping.rationale field carries the curated note.
   (github_actions_ci -> SDL and dependency_scanning -> vuln-mgmt reviewed and APPROVED as-is.)

3. Cosmetic (folded in since we touched the file): the silent-intake summary now counts detected and
   indications SEPARATELY ("N automatisch erkannt, M Indikation(en)") instead of lumping partial signals
   into "automatisch erkannt" — consistent with the three-state model just shipped.

Tests: ISO13485 no longer resolves to incident_management; summary counts split correctly. 29 onboarding
tests pass, mypy --strict clean, demo runs, check-loc 0. Runtime-visible (hypothesis resolution + summary
text) -> deploy + smoke.

backend-compliance/compliance/onboarding/silent_intake.py

@@ -41,6 +41,7 @@ class SignalMapping(BaseModel):
     evidence: Optional[str] = None              # the artifact found (already in hand -> no upload needed)
     product_fact: Optional[str] = None          # e.g. "connected_to_internet"
     fact_value: str = "true"
+    rationale: str = ""                         # curated note: WHY only indicative (esp. for partial mappings)
 
 
 class DetectedCapability(BaseModel):
@@ -111,10 +112,12 @@ def silent_intake(
     detected = [caps[k] for k in sorted(caps)]
     product_facts = [facts[k] for k in sorted(facts)]
     requirements_seen = sorted(requirements)
+    n_detected = sum(1 for d in detected if d.relationship == "detected")   # concrete artifacts -> auto-detected
+    n_indication = len(detected) - n_detected                               # partial -> indication, still asked
     summary = (
-        "Stille Vorbefüllung: %d Fähigkeit(en) automatisch erkannt, %d Produktfakt(en), %d Nachweis(e) "
-        "bereits vorhanden, %d Anforderung(en) erkannt (nicht als vorhanden gewertet)."
-        % (len(detected), len(product_facts), len(evidence), len(requirements_seen))
+        "Stille Vorbefüllung: %d Fähigkeit(en) automatisch erkannt, %d Indikation(en), %d Produktfakt(en), "
+        "%d Nachweis(e) bereits vorhanden, %d Anforderung(en) erkannt (nicht als vorhanden gewertet)."
+        % (n_detected, n_indication, len(product_facts), len(evidence), len(requirements_seen))
     )
     return SilentIntakeResult(
         detected_capabilities=detected, product_facts=product_facts,

backend-compliance/knowledge/certification_hypotheses/hypotheses.yaml

@@ -22,8 +22,11 @@ hypotheses:
   - {id: HYP-document_control, capability: document_and_change_control, relationship: supports, kind: shared,
      supported_by: [ISO9001, ISO13485, ISO27001, TISAX, ASPICE, IATF16949],
      verification_required: true, question_intent: verify_existence, expected_evidence: [document_control_procedure]}
+  # NOTE: ISO13485 deliberately NOT here — its CAPA / quality-safety incident handling is not security
+  # incident management; that mapping was too broad (would seed false hypotheses). A dedicated
+  # manage_quality_and_safety_incidents capability can be added later if a target actually needs it.
   - {id: HYP-incident_management, capability: incident_management, relationship: supports, kind: shared,
-     supported_by: [ISO27001, TISAX, IEC62443, ISO13485],
+     supported_by: [ISO27001, TISAX, IEC62443],
      verification_required: true, question_intent: verify_existence, expected_evidence: [incident_procedure]}
   - {id: HYP-supplier_security, capability: supplier_security, relationship: supports, kind: shared,
      supported_by: [ISO27001, TISAX, IEC62443],

backend-compliance/knowledge/onboarding/intake_signal_map.yaml

@@ -23,7 +23,8 @@ mappings:
   # ── documents ─────────────────────────────────────────────────────────────────────────────
   - {signal: ce_conformity_doc, capability: ce_conformity_assessment_and_technical_documentation, relationship: detected, evidence: technical_documentation}
   - {signal: product_risk_assessment_doc, capability: product_cyber_risk_assessment, relationship: detected, evidence: product_risk_assessment}
-  - {signal: patch_policy_doc, capability: secure_signed_update_distribution, relationship: partial, evidence: patch_policy}
+  - {signal: patch_policy_doc, capability: secure_signed_update_distribution, relationship: partial, evidence: patch_policy,
+     rationale: "indicates update governance, does not evidence signed distribution"}
   - {signal: incident_response_plan_doc, capability: incident_management, relationship: detected, evidence: incident_procedure}
   # ── product facts (drive scope / target applicability) ──────────────────────────────────────
   - {signal: cloud_connectivity, product_fact: connected_to_internet}

backend-compliance/tests/test_certification_hypotheses.py

@@ -71,6 +71,15 @@ def test_resolve_adapts_to_advisor_input():
     assert "document_and_change_control" in res["ISO9001"]
 
 
+def test_iso13485_does_not_suggest_security_incident_management():
+    # ISO 13485 CAPA / quality-safety incident handling is NOT security incident management -> too broad,
+    # removed from the incident_management hypothesis (review decision 2026-06-28).
+    res = resolve_for_certifications(["ISO13485"], _LIB)
+    assert "incident_management" not in res.get("ISO13485", [])
+    inc = next(h for h in _LIB if h.capability == "incident_management")
+    assert "ISO13485" not in inc.supported_by
+
+
 def test_advisor_consumes_the_library_end_to_end():
     cra = yaml.safe_load(open(os.path.join(_DIR, "..", "knowledge", "transition_patterns",
                           "transition_pattern_iso27001_to_cra_maschinenvo_v1.yaml"), encoding="utf-8"))

backend-compliance/tests/test_silent_intake.py

@@ -85,6 +85,8 @@ def test_partial_signal_is_indicative_not_detected():
     res = silent_intake([IntakeSignal(source="repository", signal="github_actions_ci")], _MAP)
     assert "secure_development_lifecycle" not in res.capability_ids()           # not counted as present
     assert res.indicative_capability_ids() == ["secure_development_lifecycle"]  # surfaced as an indication
+    # the summary counts detected and indications SEPARATELY (no over-claim of "automatisch erkannt")
+    assert "0 Fähigkeit(en) automatisch erkannt, 1 Indikation(en)" in res.summary
 
 
 def test_partial_indication_does_not_remove_the_question():