feat(iace): add hazard-matching-engine with component library, tag system, and pattern engine

Implements Phases 1-4 of the IACE Hazard-Matching-Engine:
- 120 machine components (C001-C120) in 11 categories
- 20 energy sources (EN01-EN20)
- ~85 tag taxonomy across 5 domains
- 44 hazard patterns with AND/NOT matching logic
- Pattern engine with tag resolution and confidence scoring
- 8 new API endpoints (component-library, energy-sources, tags, patterns, match/apply)
- Completeness gate G09 for pattern matching
- 320 tests passing (36 new)

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

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

@@ -277,6 +277,7 @@ type HazardLibraryEntry struct {
 	RecommendedMeasuresInformation []string  `json:"recommended_measures_information,omitempty"`
 	SuggestedEvidence        []string        `json:"suggested_evidence,omitempty"`
 	RelatedKeywords          []string        `json:"related_keywords,omitempty"`
+	Tags                     []string        `json:"tags,omitempty"`
 	IsBuiltin                bool            `json:"is_builtin"`
 	TenantID                 *uuid.UUID      `json:"tenant_id,omitempty"`
 	CreatedAt                time.Time       `json:"created_at"`
@@ -580,11 +581,12 @@ type RoleInfo struct {
 
 // EvidenceTypeInfo represents an evidence/verification type with labels
 type EvidenceTypeInfo struct {
-	ID       string `json:"id"`
-	Category string `json:"category"`
-	LabelDE  string `json:"label_de"`
-	LabelEN  string `json:"label_en"`
-	Sort     int    `json:"sort_order"`
+	ID       string   `json:"id"`
+	Category string   `json:"category"`
+	LabelDE  string   `json:"label_de"`
+	LabelEN  string   `json:"label_en"`
+	Tags     []string `json:"tags,omitempty"`
+	Sort     int      `json:"sort_order"`
 }
 
 // ProtectiveMeasureEntry represents a protective measure from the library
@@ -596,6 +598,7 @@ type ProtectiveMeasureEntry struct {
 	Description    string   `json:"description"`
 	HazardCategory string   `json:"hazard_category,omitempty"`
 	Examples       []string `json:"examples,omitempty"`
+	Tags           []string `json:"tags,omitempty"`
 }
 
 // ValidateMitigationHierarchyRequest is the request for hierarchy validation