feat(iace): Hazard-Library v2, Controls-Library, SEPA Avoidance, CE RAG-Ingest

- Hazard-Library: +79 neue Eintraege in 12 Kategorien (software_fault,
  hmi_error, mechanical_hazard, electrical_hazard, thermal_hazard,
  emc_hazard, configuration_error, safety_function_failure,
  logging_audit_failure, integration_error, environmental_hazard,
  maintenance_hazard) — Gesamtanzahl: ~116 Eintraege in 24 Kategorien
- Controls-Library: neue Datei controls_library.go mit 200 Eintraegen
  in 6 Domaenen (REQ/ARCH/SWDEV/VER/CYBER/DOC)
- Handler: GET /sdk/v1/iace/controls-library (?domain=, ?category=)
- SEPA: CalculateInherentRisk() + 4. Param Avoidance (0=disabled,
  1-5: 3=neutral); RiskComputeInput.Avoidance, RiskAssessment.Avoidance,
  AssessRiskRequest.Avoidance — backward-kompatibel (A=0 → S×E×P)
- Tests: engine_test.go + hazard_library_test.go aktualisiert
- Scripts: ingest-ce-corpus.sh — 15 CE/Safety-Dokumente (EUR-Lex,
  NIST, ENISA, NASA, OWASP, MITRE CWE) in bp_compliance_ce und
  bp_compliance_datenschutz
- Docs: docs-src/services/sdk-modules/iace.md + mkdocs.yml Nav-Eintrag

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ai-compliance-sdk/internal/iace/models.go

@@ -239,6 +239,7 @@ type RiskAssessment struct {
 	Severity                int            `json:"severity"`
 	Exposure                int            `json:"exposure"`
 	Probability             int            `json:"probability"`
+	Avoidance               int            `json:"avoidance,omitempty"` // 0=disabled, 1-5 (3=neutral)
 	InherentRisk            float64        `json:"inherent_risk"`
 	ControlMaturity         int            `json:"control_maturity"`
 	ControlCoverage         float64        `json:"control_coverage"`
@@ -404,6 +405,7 @@ type AssessRiskRequest struct {
 	Severity                int       `json:"severity" binding:"required"`
 	Exposure                int       `json:"exposure" binding:"required"`
 	Probability             int       `json:"probability" binding:"required"`
+	Avoidance               int       `json:"avoidance,omitempty"`           // 0=disabled, 1-5 (3=neutral)
 	ControlMaturity         int       `json:"control_maturity" binding:"required"`
 	ControlCoverage         float64   `json:"control_coverage" binding:"required"`
 	TestEvidenceStrength    float64   `json:"test_evidence_strength" binding:"required"`