feat(iace): surface OSHA distance anchor in Maßnahmen tab (name-resolved)

Makes the OSHA minimum-distance anchor visible per measure in a project
without a DB schema change or re-seed: persisted mitigations store the
measure NAME verbatim (not the catalog ID), and measure names are unique
across the 578-entry library (pinned by test), so a name→ID resolver
bridges the gap.

Backend: MeasureIDByName + MinimumDistancesForMeasureName/LinksForMeasureName;
/iace/minimum-distances now accepts ?measure_name=; link table enriched with
measure_name for one-request UI matching.
Frontend: useMinimumDistances loads the link table once and keys it by name;
OshaDistanceNote renders the anchor (value/CFR/license/EU-hint/relation) on the
matching measure group in the Maßnahmen tab.

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

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

@@ -200,6 +200,7 @@ func GetMinimumDistanceByID(id string) (MinimumDistance, bool) {
 //     OSHA entry is offered as the public-domain pendant for independent check.
 type MeasureDistanceLink struct {
 	MeasureID   string   `json:"measure_id"`
+	MeasureName string   `json:"measure_name,omitempty"` // resolved from the library for name-based UI matching
 	DistanceIDs []string `json:"distance_ids"`
 	Relation    string   `json:"relation"`
 	Note        string   `json:"note,omitempty"`
@@ -216,7 +217,7 @@ const (
 // ISO value (e.g. M340 robot teach speed, M368 air-receiver wall) are NOT
 // linked — that would imply a public-domain anchor that does not exist.
 func AllMeasureDistanceLinks() []MeasureDistanceLink {
-	return []MeasureDistanceLink{
+	links := []MeasureDistanceLink{
 		{
 			MeasureID:   "M600",
 			DistanceIDs: []string{"MD_OSHA_217_PSDI"},
@@ -236,6 +237,18 @@ func AllMeasureDistanceLinks() []MeasureDistanceLink {
 			Note:        "OSHA §1910.212(a)(5) Luefterschutz (max. 12 mm Spaltoeffnung) als Public-Domain-Pendant zu ISO 13857.",
 		},
 	}
+	// Enrich each link with the measure name so a name-based UI (persisted
+	// mitigations carry the name, not the ID) can match without a second lookup.
+	lib := GetProtectiveMeasureLibrary()
+	for i := range links {
+		for _, m := range lib {
+			if m.ID == links[i].MeasureID {
+				links[i].MeasureName = m.Name
+				break
+			}
+		}
+	}
+	return links
 }
 
 // LinksForMeasure returns the distance links declared for one measure.
@@ -263,3 +276,33 @@ func MinimumDistancesForMeasure(measureID string) []MinimumDistance {
 	}
 	return out
 }
+
+// MeasureIDByName resolves a protective-measure name to its catalog ID. Measure
+// names are unique across the library (verified by test), so a PERSISTED
+// mitigation — which stores the measure name verbatim but NOT the catalog ID —
+// can still be joined to its OSHA distance link without a DB schema change or a
+// re-seed. This is the bridge that lets a project's measures surface the anchor.
+func MeasureIDByName(name string) (string, bool) {
+	for _, m := range GetProtectiveMeasureLibrary() {
+		if m.Name == name {
+			return m.ID, true
+		}
+	}
+	return "", false
+}
+
+// MinimumDistancesForMeasureName resolves OSHA distances by measure NAME.
+func MinimumDistancesForMeasureName(name string) []MinimumDistance {
+	if id, ok := MeasureIDByName(name); ok {
+		return MinimumDistancesForMeasure(id)
+	}
+	return nil
+}
+
+// LinksForMeasureName resolves distance links by measure NAME.
+func LinksForMeasureName(name string) []MeasureDistanceLink {
+	if id, ok := MeasureIDByName(name); ok {
+		return LinksForMeasure(id)
+	}
+	return nil
+}