Refactor stress test files for improved readability and functionality

- Simplified the reify stress test by consolidating the reifyInstance call into a single line for better clarity.
- Added a cleanup function in the stressPatterns test to manage knownIds, ensuring that IDs of destroyed instances are removed.
- Enhanced the logic for adding, removing, and updating instances in the stressPatterns test to verify the existence of parent and child instances before operations, improving test robustness.
- Reformatted code in LargeTreeGenerator and MockApiContext for consistency and readability.

plugin/src/testUtils/LargeTreeGenerator.lua

@@ -208,7 +208,8 @@ function LargeTreeGenerator.createVirtualTree(options)
 			if withDuplicates and currentDepth <= 1 then
 				for _ = 1, duplicateCount do
 					local duplicateName = prefix .. "_1" -- Same as first child
-					local duplicateId = createVirtualInstance(duplicateName, id, currentDepth + 1, duplicateName .. "_dup")
+					local duplicateId =
+						createVirtualInstance(duplicateName, id, currentDepth + 1, duplicateName .. "_dup")
 					table.insert(children, duplicateId)
 				end
 			end

plugin/src/testUtils/MockApiContext.lua

@@ -108,13 +108,14 @@ function MockApiContext:connect()
 	end
 
 	-- Default connect response
-	return true, {
-		serverVersion = "0.0.0-mock",
-		protocolVersion = 4,
-		sessionId = HttpService:GenerateGUID(false),
-		expectedPlaceIds = {},
-		rootInstanceId = HttpService:GenerateGUID(false),
-	}
+	return true,
+		{
+			serverVersion = "0.0.0-mock",
+			protocolVersion = 4,
+			sessionId = HttpService:GenerateGUID(false),
+			expectedPlaceIds = {},
+			rootInstanceId = HttpService:GenerateGUID(false),
+		}
 end
 
 --[[