optimize catalog semantic match sby tags

src/Intent/CatalogIntentLite.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace App\Intent;
 
 use App\Tag\TagVectorSearchClient;
+use App\Tag\TagTypes;
 
 final class CatalogIntentLite
 {
@@ -22,8 +23,11 @@ final class CatalogIntentLite
         'alle',
     ];
 
-    private const MIN_SCORE = 0.60;
-    private const AMBIGUITY_DELTA = 0.05;
+    // Realistischer Gate-Wert
+    private const MIN_SCORE = 0.50;
+
+    // Ambiguity darf nicht zu aggressiv sein
+    private const AMBIGUITY_DELTA = 0.01;
 
     public function __construct(
         private readonly SalesIntentLite $salesIntentLite,
@@ -34,12 +38,12 @@ final class CatalogIntentLite
     {
         $normalizedPrompt = mb_strtolower($prompt);
 
-        // 1) Muss Listen-Signal enthalten
+        // 1) Listen-Signal prüfen
         if (!$this->containsAny($normalizedPrompt, self::LIST_SIGNALS)) {
             return null;
         }
 
-        // 2) Guardrail: Nur DISCOVERY
+        // 2) Nur DISCOVERY zulassen
         $sales = $this->salesIntentLite->detect($prompt);
         $intent = (string)($sales['intent'] ?? SalesIntentLite::DISCOVERY);
 
@@ -47,7 +51,7 @@ final class CatalogIntentLite
             return null;
         }
 
-        // 3) Vector-basierte Tag-Suche (Top 3 für Ambiguity-Check)
+        // 3) Vector-Search
         $hits = $this->tagVectorClient->search($prompt, 3);
 
         if ($hits === []) {
@@ -61,7 +65,7 @@ final class CatalogIntentLite
             return null;
         }
 
-        // Ambiguity-Check
+        // Ambiguity-Prüfung
         if (isset($hits[1])) {
             $secondScore = (float)($hits[1]['score'] ?? 0.0);
             if (abs($bestScore - $secondScore) < self::AMBIGUITY_DELTA) {
@@ -69,13 +73,12 @@ final class CatalogIntentLite
             }
         }
 
-        // 4) Nur catalog_entity zulassen
-        if (($best['tag_type'] ?? null) !== 'catalog_entity') {
+        // Nur catalog_entity zulassen
+        if (($best['tag_type'] ?? null) !== TagTypes::CATALOG_ENTITY) {
             return null;
         }
 
-        // 5) Canonical Label zurückgeben
-        $label = (string)($best['label'] ?? '');
+        $label = trim((string)($best['label'] ?? ''));
 
         if ($label === '') {
             return null;