Fix type-checking errors in snippets (code only, no .md)

This commit both:
- Fixes pre-existing mistakes in snippets, aka wrong code samples.
- Adds hidden (`@hide`) statements that do not appear in the docs,
  but satisfy typecheckers.

qdrant-landing/content/documentation/headless/snippets/strict-mode/rate-limiting/go.go

@@ -12,12 +12,14 @@ func Main() {
 	  Port: 6334,
 	})
 
+	if err != nil { panic(err) } // @hide
+
 	client.CreateCollection(context.Background(), &qdrant.CreateCollection{
 	  CollectionName: "{collection_name}",
 	  StrictModeConfig: &qdrant.StrictModeConfig{
 	    Enabled: qdrant.PtrOf(true),
-	    ReadRateLimit: qdrant.PtrOf(uint64(1000)),
-	    WriteRateLimit: qdrant.PtrOf(uint64(100)),
+	    ReadRateLimit: qdrant.PtrOf(uint32(1000)),
+	    WriteRateLimit: qdrant.PtrOf(uint32(100)),
 	  },
 	})
 }