fix(android): detekt + silence JDK 22+ native-access warning

Three issues:

* AdminRequestsScreen line 105 MagicNumber on UUID prefix length 8.
  Extracted to USER_ID_PREFIX_LEN with rationale.
* LibraryRepository TooManyFunctions (12/11) after shuffleLibrary
  addition. Same pattern as PlayerController / AuthStore: @Suppress
  at the class with rationale (function count scales with entity-
  family count, splitting would scatter plumbing).
* JDK 22+ "restricted method java.lang.System::load" warning from
  Gradle's bundled native-platform jar. Add
  --enable-native-access=ALL-UNNAMED to org.gradle.jvmargs so the
  daemon opts the native loader in. Future-compat: Gradle will
  declare this in the jar's manifest eventually and the flag becomes
  redundant.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/minstrel/admin/ui/AdminRequestsScreen.kt

@@ -102,7 +102,7 @@ private fun RequestList(
             AdminRequestRow(
                 req = req,
                 requester = usernames[req.userId]
-                    ?: req.userId.takeIf { it.isNotEmpty() }?.take(8)
+                    ?: req.userId.takeIf { it.isNotEmpty() }?.take(USER_ID_PREFIX_LEN)
                     ?: "unknown",
                 onApprove = { onApprove(req.id) },
                 onReject = { onReject(req.id) },
@@ -176,3 +176,7 @@ private fun LoadingCentered() {
         CircularProgressIndicator(color = MaterialTheme.colorScheme.primary)
     }
 }
+
+// UUID prefix length used as a friendlier-than-raw-UUID fallback when
+// the admin users list fetch fails and we can't resolve userId → name.
+private const val USER_ID_PREFIX_LEN = 8

android/app/src/main/java/com/fabledsword/minstrel/library/data/LibraryRepository.kt

@@ -27,6 +27,11 @@ import javax.inject.Singleton
  * NetworkModule, we don't @Provides per-endpoint Retrofit interfaces
  * — fewer Hilt bindings, locality of reference.
  */
+// LibraryRepository owns reads + refreshes for three entity families
+// (artists / albums / tracks) plus shuffle. Function count scales with
+// entity-family count; splitting into per-family repos would
+// scatter the shared dao + retrofit plumbing for no real gain.
+@Suppress("TooManyFunctions")
 @Singleton
 class LibraryRepository @Inject constructor(
     private val artistDao: CachedArtistDao,

android/gradle.properties

@@ -1,4 +1,10 @@
-org.gradle.jvmargs=-Xmx4g -Dfile.encoding=UTF-8
+# --enable-native-access=ALL-UNNAMED silences the JDK 22+ "restricted
+# method in java.lang.System has been called" warning that Gradle 9.1's
+# bundled native-platform-0.22-milestone-28.jar trips via System.load().
+# Future JDKs will require this opt-in to allow native loads from
+# unnamed modules; the jar itself doesn't yet declare native access in
+# its manifest, so we opt in at the daemon level.
+org.gradle.jvmargs=-Xmx4g -Dfile.encoding=UTF-8 --enable-native-access=ALL-UNNAMED
 org.gradle.parallel=true
 org.gradle.caching=true
 org.gradle.configuration-cache=true