fix(iace): narrative extractor ignored most Grenzen fields (field-name mismatch)

extractNarrativeFromMetadata looked for field names that don't exist in the real
limits-form schema (interfaces_description, control_system_description,
energy_sources, space_limits, foreseeable_misuse), so it effectively read only
general_description + intended_purpose. The electrical/mechanical/pneumatic/
software interface fields — each a hazard source — were silently dropped, which
is why electrical hazard coverage was 9% for the Kistenhubgeraet.

Now reads the actual schema fields incl. electrical_interfaces /
mechanical_interfaces / pneumatic_hydraulic_interfaces / software_interfaces /
energy_supply / spatial_limits / foreseeable_misuses, plus array fields
(operating_modes, person_groups, industry_sectors). Legacy names kept.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

ai-compliance-sdk/internal/api/handlers/iace_handler_init_helpers.go

@@ -26,23 +26,51 @@ func extractNarrativeFromMetadata(metadata json.RawMessage) string {
 		return ""
 	}
 
+	// Every limits-form field that carries machine-describing text. Field
+	// names MUST match the real form schema — the per-interface fields
+	// (electrical/mechanical/pneumatic/software) each contribute hazards, not
+	// just the prose. Legacy names are kept so older projects still parse.
 	textFields := []string{
-		"general_description", "intended_purpose", "foreseeable_misuse",
-		"space_limits", "time_limits", "environmental_conditions",
-		"energy_sources", "materials_processed", "operating_modes",
-		"maintenance_requirements", "personnel_requirements",
-		"interfaces_description", "control_system_description",
-		"safety_functions_description",
+		// description / purpose
+		"general_description", "machine_designation", "intended_purpose",
+		"foreseeable_misuse", "foreseeable_misuses", "variants", "area_of_use",
+		// limits
+		"space_limits", "spatial_limits", "time_limits", "temporal_limits",
+		"environmental_conditions", "operating_conditions",
+		// energy + materials
+		"energy_sources", "energy_supply", "materials_processed",
+		// interfaces (the previously-ignored ones)
+		"interfaces_description", "control_system_description", "safety_functions_description",
+		"electrical_interfaces", "mechanical_interfaces",
+		"pneumatic_hydraulic_interfaces", "software_interfaces",
+		// people / maintenance
+		"maintenance_requirements", "personnel_requirements", "qualification_requirements",
 	}
-	var result string
+	arrayFields := []string{"operating_modes", "person_groups", "industry_sectors"}
+
+	var sb strings.Builder
 	for _, field := range textFields {
 		if v, ok := limits[field]; ok {
-			if s, ok := v.(string); ok && s != "" {
-				result += s + "\n\n"
+			if s, ok := v.(string); ok && strings.TrimSpace(s) != "" {
+				sb.WriteString(s)
+				sb.WriteString("\n\n")
 			}
 		}
 	}
-	return result
+	for _, field := range arrayFields {
+		if v, ok := limits[field]; ok {
+			if arr, ok := v.([]interface{}); ok {
+				for _, e := range arr {
+					if s, ok := e.(string); ok && s != "" {
+						sb.WriteString(s)
+						sb.WriteString(", ")
+					}
+				}
+				sb.WriteString("\n\n")
+			}
+		}
+	}
+	return sb.String()
 }
 
 // acceptableMeasureCategories returns the set of measure HazardCategory values