Initial commit: HotDeal Alarm Android App

Features:
- Multi-site hot deal scraping (Ppomppu, Clien, Ruriweb, Coolenjoy)
- Site filter with color-coded badges
- Board display names (e.g., ppomppu8 -> 알리뽐뿌)
- Anti-bot protection with request delays and User-Agent rotation
- Keyword matching and notifications
- Material Design 3 UI

app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Sample backup rules file
+-->
+<full-backup-content>
+    <include domain="sharedpref" path="."/>
+    <exclude domain="sharedpref" path="device.xml"/>
+</full-backup-content>

app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Sample data extraction rules file
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <include domain="sharedpref" path="."/>
+        <exclude domain="sharedpref" path="device.xml"/>
+    </cloud-backup>
+    <device-transfer>
+        <include domain="sharedpref" path="."/>
+        <exclude domain="sharedpref" path="device.xml"/>
+    </device-transfer>
+</data-extraction-rules>

app/src/main/res/xml/widget_info.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:minWidth="250dp"
+    android:minHeight="110dp"
+    android:updatePeriodMillis="1800000"
+    android:initialLayout="@layout/widget_hot_deal"
+    android:resizeMode="horizontal|vertical"
+    android:widgetCategory="home_screen"
+    android:previewImage="@drawable/ic_launcher_foreground"
+    android:description="@string/app_name">
+</appwidget-provider>