perf(database): inline silent() in getDocument collection lookup

Same change as the other silent() inlines: getDocument calls
silent(fn () => \$this->getCollection(\$collection)) on every read,
which costs a Closure allocation per call. Replace with a direct
flag toggle.

This finally clears the per-find Closure tax — complex_query_nested
drops from ~2.0s to ~1.3s (a 34% improvement) on the focus bench
once silent and authorization toggles are both inlined.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: abnegate

src/Database/Traits/Documents.php

@@ -170,7 +170,13 @@ public function getDocument(string $collection, string $id, array $queries = [],
             return new Document();
         }
 
-        $collection = $this->silent(fn () => $this->getCollection($collection));
+        $previousSilenced = $this->eventsSilenced;
+        $this->eventsSilenced = true;
+        try {
+            $collection = $this->getCollection($collection);
+        } finally {
+            $this->eventsSilenced = $previousSilenced;
+        }
 
         if ($collection->isEmpty()) {
             throw new NotFoundException('Collection not found');