Refactor package structure to de.tki.comfymodels, fix compilation errors, and prioritize imported model list in search

src/test/java/de/tki/comfymodels/WorkflowServiceTest.java

@@ -0,0 +1,26 @@
+package de.tki.comfymodels.service;
+
+import de.tki.comfymodels.service.impl.WorkflowService;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class WorkflowServiceTest {
+
+    private final WorkflowService workflowService = new WorkflowService();
+
+    @Test
+    public void testExtractFromPng() throws IOException {
+        File pngFile = new File("flux_canny_model_example.png");
+        if (pngFile.exists()) {
+            String workflow = workflowService.extractWorkflow(pngFile);
+            assertNotNull(workflow);
+            assertTrue(workflow.contains("{"));
+        } else {
+            System.out.println("Skipping test: flux_canny_model_example.png not found");
+        }
+    }
+}