some swing stuff cause swt is heavy and swing isnt

+ SwingCameraWindow
+ SwingCCTVManager

---
fixes in WebcamCaptureLoop.java : Include thread safety, and some more stuff which is needed for Swing components.

Planning on deprecating SWT in general

src/test/java/CameraSettingsTest.java

@@ -0,0 +1,98 @@
+import io.swtc.networking.CameraConfig;
+import io.swtc.networking.CameraSettings;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CameraSettingsTest {
+
+    // Must match the filename used in CameraSettings.java
+    private final File TEST_FILE = new File("network_cameras.json");
+
+    @BeforeEach
+    @AfterEach
+    void cleanUp() {
+        // Ensure we start and end with a clean slate to avoid side effects
+        if (TEST_FILE.exists()) {
+            TEST_FILE.delete();
+        }
+    }
+
+    @Test
+    void testLoadReturnsEmptyListWhenNoFile() {
+        // If the file doesn't exist, it should return an empty list (not null)
+        List<CameraConfig> result = CameraSettings.load();
+
+        assertNotNull(result, "Load should never return null");
+        assertTrue(result.isEmpty(), "Should return empty list if file doesn't exist");
+    }
+
+    @Test
+    void testSaveAndLoad() {
+        // 1. Create a config (Using your actual constructor)
+        CameraConfig config = new CameraConfig("FrontDoor", "http://192.168.1.100/mjpeg");
+
+        // 2. Save it
+        CameraSettings.save(config);
+
+        // 3. Verify file creation
+        assertTrue(TEST_FILE.exists(), "File should be created after save");
+
+        // 4. Load it back
+        List<CameraConfig> loaded = CameraSettings.load();
+
+        // 5. Verify contents
+        assertEquals(1, loaded.size());
+        assertEquals("FrontDoor", loaded.get(0).getName());
+        assertEquals("http://192.168.1.100/mjpeg", loaded.get(0).getUrl());
+    }
+
+    @Test
+    void testSaveMultiple() {
+        // Save two distinct cameras
+        CameraSettings.save(new CameraConfig("Cam1", "rtsp://10.0.0.1/stream"));
+        CameraSettings.save(new CameraConfig("Cam2", "rtsp://10.0.0.2/stream"));
+
+        List<CameraConfig> loaded = CameraSettings.load();
+
+        assertEquals(2, loaded.size());
+        assertEquals("Cam1", loaded.get(0).getName());
+        assertEquals("Cam2", loaded.get(1).getName());
+    }
+
+    @Test
+    void testDelete() {
+        // Setup: Save two cameras
+        CameraSettings.save(new CameraConfig("Garage", "http://1.1.1.1"));
+        CameraSettings.save(new CameraConfig("Garden", "http://2.2.2.2"));
+
+        // Action: Delete "Garage"
+        CameraSettings.delete("Garage");
+
+        // Verify: Only "Garden" remains
+        List<CameraConfig> result = CameraSettings.load();
+        assertEquals(1, result.size());
+        assertEquals("Garden", result.get(0).getName());
+    }
+
+    @Test
+    void testLoadCorruptFile() throws IOException {
+        // Manually write broken JSON to the file
+        try (FileWriter writer = new FileWriter(TEST_FILE)) {
+            writer.write("{ \"this is broken json\": ... ");
+        }
+
+        // The code catches IOException and returns empty list
+        List<CameraConfig> result = CameraSettings.load();
+
+        assertNotNull(result);
+        assertTrue(result.isEmpty(), "Should handle corrupt JSON gracefully by returning empty list");
+    }
+}