Add v7.0: Tabs UI and Real-Time Events

Major Features:
- Dual tab interface (Channels and Events) with visible focus
- Real-time event status calculation (Live, Upcoming, Finished)
- Smart caching system for events (24-hour cache)
- Argentina timezone support (America/Argentina/Buenos_Aires)

UI/TV Improvements:
- Focusable tabs with bg_tab_selector for D-pad navigation
- Visual feedback with highlighted borders on focused tabs
- Consistent design between tabs and content cards
- Enhanced TV navigation experience

Real-Time Event System:
- EventRepository: Centralized event management with 24h cache
- EventAdapter: Optimized RecyclerView for event listings
- EventItem: Structured data model for events
- Dynamic status calculation (remaining time, live duration, completion)
- Automatic link normalization to global2.php

Technical Implementation:
- activity_main.xml: Complete dual-tab layout
- item_event.xml: Dedicated event item layout with RecyclerView
- bg_tab_selector.xml: Tab states (selected, focused, pressed)
- MainActivity.java: Tab switching and event management
- Automatic URL processing for seamless PlayerActivity integration

Time Zone Features:
- Argentina local time (America/Argentina/Buenos_Aires)
- Real-time status updates without page refresh
- "En Xh Ym" for upcoming events
- "En vivo durante 2h" status for live events
- "Finalizado" status for completed events

Solutions:
- Fixed web page "En vivo" not updating issue
- Provides always-current event status in app
- Direct event-to-player navigation without manual intervention
- Improved TV navigation with clear visual feedback

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/src/main/res/drawable/bg_tab_selector.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_selected="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#18d763" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+    <item android:state_focused="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#5522c1ff" />
+            <corners android:radius="20dp" />
+            <stroke
+                android:width="2dp"
+                android:color="#88FFFFFF" />
+        </shape>
+    </item>
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <solid android:color="#3322c1ff" />
+            <corners android:radius="20dp" />
+        </shape>
+    </item>
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="#222222" />
+            <corners android:radius="20dp" />
+            <stroke
+                android:width="1dp"
+                android:color="#44FFFFFF" />
+        </shape>
+    </item>
+</selector>