test(macos): cover camera snap defaults

apps/macos/Tests/ClawdisIPCTests/CameraCaptureServiceTests.swift

@@ -0,0 +1,22 @@
+import Testing
+
+@testable import Clawdis
+
+@Suite struct CameraCaptureServiceTests {
+    @Test func normalizeSnapDefaults() {
+        let res = CameraCaptureService.normalizeSnap(maxWidth: nil, quality: nil)
+        #expect(res.maxWidth == 1600)
+        #expect(res.quality == 0.9)
+    }
+
+    @Test func normalizeSnapClampsValues() {
+        let low = CameraCaptureService.normalizeSnap(maxWidth: -1, quality: -10)
+        #expect(low.maxWidth == 1600)
+        #expect(low.quality == 0.05)
+
+        let high = CameraCaptureService.normalizeSnap(maxWidth: 9999, quality: 10)
+        #expect(high.maxWidth == 9999)
+        #expect(high.quality == 1.0)
+    }
+}
+