Vectors: Got basic LLM querying working using vector search context

app/Search/Vectors/VectorSearchRunner.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace BookStack\Search\Vectors;
+
+class VectorSearchRunner
+{
+    public function __construct(
+        protected VectorQueryServiceProvider $vectorQueryServiceProvider
+    ) {
+    }
+
+    public function run(string $query): array
+    {
+        $queryService = $this->vectorQueryServiceProvider->get();
+        $queryVector = $queryService->generateEmbeddings($query);
+
+        // TODO - Apply permissions
+        // TODO - Join models
+        $topMatches = SearchVector::query()->select('text', 'entity_type', 'entity_id')
+            ->selectRaw('VEC_DISTANCE_COSINE(VEC_FROMTEXT("[' . implode(',', $queryVector) . ']"), embedding) as distance')
+            ->orderBy('distance', 'asc')
+            ->limit(10)
+            ->get();
+
+        $matchesText = array_values(array_map(fn (SearchVector $match) => $match->text, $topMatches->all()));
+        $llmResult = $queryService->query($query, $matchesText);
+
+        return [
+            'llm_result' => $llmResult,
+            'entity_matches' => $topMatches->toArray()
+        ];
+    }
+}