initial commit

Signed-off-by: ale <ale@manalejandro.com>

android-app/app/src/main/res/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="primary_color">#2196F3</color>
+    <color name="primary_color_dark">#1976D2</color>
+    <color name="accent_color">#FF4081</color>
+    
+    <color name="background_color">#FAFAFA</color>
+    <color name="chat_background">#FFFFFF</color>
+    <color name="video_background">#000000</color>
+    <color name="input_background">#FFFFFF</color>
+    
+    <color name="primary_text_color">#212121</color>
+    <color name="secondary_text_color">#757575</color>
+    <color name="system_text_color">#9E9E9E</color>
+    
+    <color name="message_background">#F5F5F5</color>
+    <color name="message_border">#E0E0E0</color>
+    <color name="message_time_color">#B0BEC5</color>
+    
+    <color name="system_background">#E8F5E8</color>
+    
+    <color name="input_field_background">#FFFFFF</color>
+    <color name="input_border">#E0E0E0</color>
+    
+    <color name="button_background">#FFFFFF</color>
+    <color name="button_border">#E0E0E0</color>
+    <color name="button_enabled">#4CAF50</color>
+    <color name="button_disabled">#F44336</color>
+    
+    <color name="icon_color">#616161</color>
+    <color name="white">#FFFFFF</color>
+    <color name="black">#000000</color>
+</resources>

android-app/app/src/main/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">ChatRTC</string>
+    
+    <!-- Main Activity -->
+    <string name="welcome_title">Welcome to ChatRTC</string>
+    <string name="welcome_subtitle">Connect with others using audio and video chat</string>
+    <string name="nickname_hint">Enter your nickname</string>
+    <string name="join_chat">Join Chat</string>
+    
+    <!-- Chat Activity -->
+    <string name="message_hint">Type your message...</string>
+    <string name="emoji_button">Emoji</string>
+    
+    <!-- Permissions -->
+    <string name="permission_camera">Camera permission is required for video chat</string>
+    <string name="permission_microphone">Microphone permission is required for audio chat</string>
+    
+    <!-- Errors -->
+    <string name="error_nickname_empty">Please enter your nickname</string>
+    <string name="error_connection">Connection failed. Please try again.</string>
+    <string name="error_webrtc">WebRTC error occurred</string>
+</resources>

android-app/app/src/main/res/values/themes.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme -->
+    <style name="Theme.ChatRTC" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color -->
+        <item name="colorPrimary">@color/primary_color</item>
+        <item name="colorPrimaryVariant">@color/primary_color_dark</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color -->
+        <item name="colorSecondary">@color/accent_color</item>
+        <item name="colorSecondaryVariant">@color/accent_color</item>
+        <item name="colorOnSecondary">@color/white</item>
+        <!-- Status bar color -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here -->
+        <item name="android:windowBackground">@color/background_color</item>
+    </style>
+</resources>