feat: consent screen, reminder system, medical metrics, sex field, design tokens, code quality

A. Reminder: ReminderService (AlarmManager chain), ReminderSettingsView,
   bell icon in Piezo top bar, reschedule on catheterization
B. Consent: ConsentView (3 mandatory items), onboarding→consent→registration flow,
   persistent consent storage, sex field in User + Registration Step 2
C. Diary: 24hUV, NUV, NPI, max capacity, day/night frequency metrics card
D. Design: DesignTokens.kt, 48dp touch targets, DonutChart semantics, pressScale modifier
E. Quality: BuildConfig.DEBUG log wrapping, DateFormatter caching, background I/O for diary store

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src/main/AndroidManifest.xml

@@ -20,6 +20,10 @@
     <!-- Voice Recognition -->
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
 
+    <!-- Alarm / Vibration -->
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
+    <uses-permission android:name="android.permission.VIBRATE" />
+
     <!-- Internet (AI 음성 fallback) -->
     <uses-permission android:name="android.permission.INTERNET" />
 
@@ -48,6 +52,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <receiver
+            android:name=".services.ReminderReceiver"
+            android:exported="false" />
     </application>
 
 </manifest>