Make the foreground-service test read the running API level

The three foreground-service-type regimes (none at 33, dataSync at 34,
mediaProcessing at 35+) are the reason ConversionForegroundType exists, so
the test derives its expectation from Build.VERSION rather than pinning one
value. The same test then means something on any device in the supported
range instead of only on the one it was written against.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app/src/androidTest/java/dev/jasonmross/mediaconverter/work/ConversionWorkerTest.kt

@@ -52,6 +52,11 @@ class ConversionWorkerTest {
         File(context.cacheDir, "conversions").listFiles()?.forEach { it.delete() }
     }
 
+    /**
+     * Deliberately derives the expectation from the running API rather than pinning a
+     * value, so the same test is meaningful on an API 33, 34 or 35+ device. The three
+     * regimes are the whole reason ConversionForegroundType exists.
+     */
     @Test
     fun foregroundTypeMatchesTheRunningApiLevel() {
         val expected = when {