feat(alarmas): replace one-line reliability button with full diagnostics screen

Surface all six DiagnosticoAlarmasAndroid fields instead of three: the
battery-optimization exemption and native pending-alarm count were
already collected but silently dropped by the old widget. Each failing
signal now offers a "Fix this" action that opens the right system
settings screen (exact alarms, notifications, full-screen intent,
battery optimization), guarded by SDK level and never crashing when a
ROM lacks that screen. Manufacturers known for aggressive background
killing (Xiaomi/Redmi/POCO, Huawei, Oppo, Vivo, OnePlus, Samsung) get
an honest explanation that Autostart must be enabled manually, since
there is no API to detect or grant it.

Notifications now deep-links straight to
ACTION_APP_NOTIFICATION_SETTINGS via a new openNotificationSettings
native method, instead of reusing the runtime permission popup meant
for first-time alarm creation.

New copy is added to all 13 ARB locales with real per-language
translations (not Spanish copies), verified by the ARB parity and
anti-copy tests plus the corruption scanner.

lib/l10n/app_id.arb

@@ -841,5 +841,38 @@
       }
     }
   },
-  "alarmCardVacationPausedBadge": "Dijeda karena liburan"
+  "alarmCardVacationPausedBadge": "Dijeda karena liburan",
+  "alarmDiagnosticsExactAlarmsTitle": "Penjadwalan alarm presisi",
+  "alarmDiagnosticsExactAlarmsHint": "Membuat alarm berbunyi tepat pada menit yang kamu atur, meski ponsel dalam mode tidur.",
+  "alarmDiagnosticsNotificationsTitle": "Notifikasi",
+  "alarmDiagnosticsNotificationsHint": "Diperlukan untuk menampilkan alarm dan pemberitahuan dini.",
+  "alarmDiagnosticsFullScreenTitle": "Tampilan alarm layar penuh",
+  "alarmDiagnosticsFullScreenHint": "Membuat layar alarm muncul otomatis, meski ponsel terkunci.",
+  "alarmDiagnosticsBatteryTitle": "Optimisasi baterai",
+  "alarmDiagnosticsBatteryHint": "Mencegah sistem menutup PluriWave di latar belakang, sehingga alarm tetap bisa berbunyi.",
+  "alarmDiagnosticsNativeCountTitle": "Alarm yang terdaftar di Android",
+  "alarmDiagnosticsNativeCountValue": "Terdaftar saat ini: {count}",
+  "@alarmDiagnosticsNativeCountValue": {
+    "placeholders": {
+      "count": {
+        "type": "int"
+      }
+    }
+  },
+  "alarmDiagnosticsNativeCountAttentionHint": "Kamu punya alarm yang aktif, tapi belum ada yang terdaftar di sistem. Buka lagi PluriWave, atau perbaiki dulu poin-poin di atas.",
+  "alarmDiagnosticsManufacturerLabel": "Produsen",
+  "alarmDiagnosticsSdkLabel": "Versi Android (SDK)",
+  "alarmDiagnosticsNeedsAttentionStatus": "Perlu perhatian",
+  "alarmDiagnosticsAutostartTitle": "Satu langkah manual lagi di ponsel ini",
+  "alarmDiagnosticsAutostartBody": "Ponsel {manufacturer} sering menutup aplikasi yang berjalan di latar belakang untuk menghemat baterai. Tidak ada pengaturan yang bisa diaktifkan PluriWave sendiri — kamu perlu mengaktifkan sendiri Autostart (kadang disebut \"Mulai otomatis\" atau \"Aktivitas latar belakang\") untuk PluriWave. Cari di Pengaturan, di bagian Aplikasi atau Baterai, atau di aplikasi Keamanan bawaan ponsel.",
+  "@alarmDiagnosticsAutostartBody": {
+    "placeholders": {
+      "manufacturer": {
+        "type": "String"
+      }
+    }
+  },
+  "alarmDiagnosticsFixAction": "Perbaiki",
+  "alarmDiagnosticsIntentUnavailable": "Tidak bisa membuka layar pengaturan itu di ponsel ini. Coba cari secara manual di Pengaturan.",
+  "alarmDiagnosticsUnavailableHint": "Kami belum bisa memeriksa pengaturan alarmmu."
 }