fix: Struktureller Fix — Maschinentyp-Filter fuer Keywords + Patterns

PROBLEM: Cobot-Projekt hatte 52 Pressen-Hazards weil Keywords wie
"stempel" und "stoessel" ohne Maschinentyp-Kontext matchten.

FIX an 3 Stellen:
1. KeywordEntry.MachineTypes — Pressen-Keywords nur fuer press/*_press
2. ParseNarrative(text, machineType) — Parser laedt Maschinentyp aus Projekt
3. HazardPattern.MachineTypes — Pressen-Patterns (HP045-HP058) nur fuer Pressen

Verhindert zukuenftig falsche Zuordnungen bei neuen Kundenprojekten.

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

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

@@ -94,7 +94,9 @@ var roleKeywords = map[string]string{
 // ParseNarrative extracts components, energy sources, lifecycle phases,
 // roles, and tags from a machine description text. Fully deterministic,
 // no LLM required.
-func ParseNarrative(text string) ParseResult {
+// machineType is optional — if provided, keywords with MachineTypes
+// restrictions are only matched when the machine type is in the list.
+func ParseNarrative(text string, machineType ...string) ParseResult {
 	result := ParseResult{}
 	if text == "" {
 		return result
@@ -122,7 +124,27 @@ func ParseNarrative(text string) ParseResult {
 	seenEnergy := make(map[string]bool)
 	tagSet := make(map[string]bool)
 
+	// Resolve machine type for filtering
+	var mType string
+	if len(machineType) > 0 {
+		mType = machineType[0]
+	}
+
 	for _, entry := range dictionary {
+		// Skip keywords restricted to other machine types
+		if len(entry.MachineTypes) > 0 && mType != "" {
+			matched := false
+			for _, mt := range entry.MachineTypes {
+				if mt == mType {
+					matched = true
+					break
+				}
+			}
+			if !matched {
+				continue // This keyword is for a different machine type
+			}
+		}
+
 		for _, kw := range entry.Keywords {
 			kwNorm := strings.ToLower(kw)
 			kwNorm = strings.ReplaceAll(kwNorm, "ä", "ae")