feat: add initial Flutter project structure and auth screen

This commit introduces the initial setup for the Lightcloud Flutter application including:
- Basic project structure with Android and web configurations
- Authentication screen with login/register functionality
- Initial UI components and theme setup

.gitignore

@@ -3,43 +3,35 @@
 # will have compiled files and executables
 debug/
 target/
-
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
 Cargo.lock
-
-# These are backup files generated by rustfmt
 **/*.rs.bk
-
-# MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
 # ---> Dart
 # See https://www.dartlang.org/guides/libraries/private-files
 
 # Files and directories created by pub
-.dart_tool/
-.packages
-build/
+lightcloud_app/dart_tool/
+lightcloud_app/packages
+lightcloud_app/build/
 # If you're building an application, you may want to check-in your pubspec.lock
-pubspec.lock
+lightcloud_app/pubspec.lock
 
 # Directory created by dartdoc
 # If you don't generate documentation locally you can remove this line.
-doc/api/
+lightcloud_app/doc/api/
 
 # dotenv environment variables file
-.env*
+lightcloud_app/.env*
 
 # Avoid committing generated Javascript files:
-*.dart.js
-*.info.json      # Produced by the --dump-info flag.
-*.js             # When generated by dart2js. Don't specify *.js if your
+lightcloud_app/*.dart.js
+lightcloud_app/*.info.json      # Produced by the --dump-info flag.
+lightcloud_app/*.js             # When generated by dart2js. Don't specify *.js if your
                  # project includes source files written in JavaScript.
-*.js_
-*.js.deps
-*.js.map
-
-.flutter-plugins
-.flutter-plugins-dependencies
+lightcloud_app/.js_
+lightcloud_app/*.js.deps
+lightcloud_app/*.js.map
 
+lightcloud_app/.flutter-plugins
+lightcloud_app/.flutter-plugins-dependencies

api/.env.example

@@ -0,0 +1,16 @@
+# Database Configuration
+DATABASE_URL=postgres://postgres:postgres@localhost:5432/litecloud
+
+# JWT Authentication & Encryption
+JWT_SECRET=your_jwt_secret_key_here_make_it_long_and_random
+JWT_EXPIRATION=86400  # in seconds
+
+# Generate a secure random key with: openssl rand -base64 32
+MASTER_KEY=YourBase64EncodedMasterKeyHere
+
+STORAGE_PATH=./storage
+DEFAULT_USER_QUOTA=5368709120  # 5GB in bytes
+
+RUST_LOG=info,tower_http=debug
+PORT=8080
+HOST=0.0.0.0

instructions.md

@@ -1,90 +0,0 @@
-## Project Prompt: Secure File Hosting Platform (Nextcloud-like)
-
-### Overview
-
-Build a full-stack web application that mimics the core features of Nextcloud with secure file upload, download, and sharing functionality. The stack should be:
-
-- **Frontend**: Flutter Web
-- **Backend**: Rust (Axum framework)
-- **Database**: PostgreSQL
-- **Storage**: Encrypted file storage on local disk
-- **Deployment**: Docker (two-container setup: web + db)
-
-### Required Features
-
-#### Core Features
-
-- Users can upload and download files
-- Files are encrypted at rest using AES-256 (server-side encryption)
-- Users can generate public shareable links to download files
-- File upload limits per user (configurable)
-- Support for shared folders among users (with permissions)
-- Serve Flutter web UI and backend API from the same container
-
-#### Authentication and User Management
-
-- User registration and login using email + password
-- Passwords must be securely hashed using Argon2 or bcrypt
-- JWT-based session handling for API authentication
-- Role-based permission system:
-  - Owner, editor, viewer roles for shared folders
-  - Users can only access files and folders they own or are shared with them
-
-#### File Handling
-
-- Store files in `/data` directory, encrypted using a per-file key
-- Save metadata and encryption keys in PostgreSQL (keys encrypted with a master key)
-- Expose REST endpoints:
-  - POST `/api/upload`
-  - GET `/api/download/:id`
-  - POST `/api/share`
-  - GET `/api/shared/:token`
-- Limit file uploads per user (configurable max size)
-- Maintain a file tree (directories, nested folders)
-
-### Infrastructure
-
-- Use Docker Compose to define:
-  - `web`: Rust backend and Flutter frontend in a single container
-  - `db`: PostgreSQL container
-- Only expose one public port (80), used by the web container
-- Use Docker volume for persistent file storage (`./data`)
-
-### Project Structure
-
-```
-project-root/
-├── docker-compose.yml
-├── Dockerfile (multi-stage for Flutter + Rust)
-├── backend/         # Rust API
-├── frontend/        # Flutter Web app
-├── data/            # Mounted volume for encrypted files
-```
-
-### Libraries and Tools
-
-- **Rust Backend**:
-
-  - `axum` for HTTP server
-  - `tokio` for async runtime
-  - `sqlx` for PostgreSQL
-  - `jsonwebtoken` for JWT
-  - `argon2` or `bcrypt` for password hashing
-  - `aes-gcm` or `ring` for file encryption
-  - `uuid` for file and share link identifiers
-  - `dotenvy` to manage environment variables
-- **Flutter Frontend**:
-
-  - File upload UI
-  - Folder navigation
-  - Login/Register screens
-  - Share file dialog with permission settings
-
-### Goals
-
-Generate:
-
-- Docker Compose config and Dockerfile
-- Flutter web UI skeleton with login/upload functionality
-- Rust backend with user authentication, file handling, and share APIs
-- PostgreSQL schema with users, files, shares, and permissions

lightcloud_app/.gitignore

@@ -0,0 +1,43 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

lightcloud_app/.metadata

@@ -0,0 +1,36 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "761747bfc538b5af34aa0d3fac380f1bc331ec49"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+    - platform: android
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+    - platform: ios
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+    - platform: web
+      create_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+      base_revision: 761747bfc538b5af34aa0d3fac380f1bc331ec49
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

lightcloud_app/README.md

@@ -0,0 +1,16 @@
+# lightcloud
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

lightcloud_app/analysis_options.yaml

@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

lightcloud_app/android/.gitignore

@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

lightcloud_app/android/app/build.gradle

@@ -0,0 +1,58 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file("local.properties")
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader("UTF-8") { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterVersionCode = localProperties.getProperty("flutter.versionCode")
+if (flutterVersionCode == null) {
+    flutterVersionCode = "1"
+}
+
+def flutterVersionName = localProperties.getProperty("flutter.versionName")
+if (flutterVersionName == null) {
+    flutterVersionName = "1.0"
+}
+
+android {
+    namespace = "com.lightcloud.lightcloud"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.lightcloud.lightcloud"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutterVersionCode.toInteger()
+        versionName = flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

lightcloud_app/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,45 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="lightcloud"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

lightcloud_app/android/app/src/main/kotlin/com/lightcloud/lightcloud/MainActivity.kt

@@ -0,0 +1,5 @@
+package com.lightcloud.lightcloud
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity()

lightcloud_app/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

lightcloud_app/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

lightcloud_app/android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

lightcloud_app/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

lightcloud_app/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

lightcloud_app/android/build.gradle

@@ -0,0 +1,18 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = "../build"
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

lightcloud_app/android/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

lightcloud_app/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

lightcloud_app/android/settings.gradle

@@ -0,0 +1,25 @@
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"

lightcloud_app/lib/main.dart

@@ -0,0 +1,171 @@
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Litecloud alpha',
+      theme: ThemeData(
+        colorScheme:
+            ColorScheme.fromSeed(seedColor: Color.fromARGB(255, 72, 4, 117)),
+        useMaterial3: true,
+      ),
+      home: const AuthScreen(),
+    );
+  }
+}
+
+class AuthScreen extends StatefulWidget {
+  const AuthScreen({super.key});
+
+  @override
+  State<AuthScreen> createState() => _AuthScreenState();
+}
+
+class _AuthScreenState extends State<AuthScreen> {
+  bool _isLogin = true;
+
+  void _toggleAuthMode() {
+    setState(() {
+      _isLogin = !_isLogin;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final deviceSize = MediaQuery.of(context).size;
+
+    return Scaffold(
+      body: Container(
+        width: deviceSize.width,
+        height: deviceSize.height,
+        decoration: BoxDecoration(
+          gradient: LinearGradient(
+            colors: [Colors.purple, Color.fromARGB(255, 72, 4, 117)],
+            begin: Alignment.topLeft,
+            end: Alignment.bottomRight,
+          ),
+        ),
+        child: SafeArea(
+          child: SingleChildScrollView(
+            child: Padding(
+              padding: const EdgeInsets.all(16.0),
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  const SizedBox(height: 60),
+                  // Logo and tagline
+                  Container(
+                    margin: const EdgeInsets.only(bottom: 40.0),
+                    child: Column(
+                      children: [
+                        Text(
+                          'Litecloud',
+                          style: TextStyle(
+                            fontSize: 42,
+                            fontWeight: FontWeight.bold,
+                            color: Theme.of(context).colorScheme.onPrimary,
+                          ),
+                        ),
+                        const SizedBox(height: 8),
+                        Text(
+                          'Rust based cloud storage',
+                          style: TextStyle(
+                            fontSize: 16,
+                            color: Theme.of(context).colorScheme.onPrimary,
+                          ),
+                        ),
+                        const SizedBox(height: 8),
+                        Text(
+                          'Version 0.0.1 pre-alpha',
+                          style: TextStyle(
+                            fontSize: 8,
+                            color: Theme.of(context).colorScheme.onPrimary,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  // Auth card
+                  Card(
+                    margin: const EdgeInsets.symmetric(horizontal: 600.0),
+                    elevation: 8.0,
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(16.0),
+                    ),
+                    child: Padding(
+                      padding: const EdgeInsets.all(16.0),
+                      child: Column(
+                        children: [
+                          Text(
+                            _isLogin ? 'Login' : 'Register',
+                            style: Theme.of(context).textTheme.headlineMedium,
+                          ),
+                          const SizedBox(height: 40),
+                          TextFormField(
+                            decoration: const InputDecoration(
+                              labelText: 'Email',
+                              prefixIcon: Icon(Icons.email),
+                              border: OutlineInputBorder(),
+                            ),
+                            keyboardType: TextInputType.emailAddress,
+                          ),
+                          const SizedBox(height: 16),
+                          TextFormField(
+                            decoration: const InputDecoration(
+                              labelText: 'Password',
+                              prefixIcon: Icon(Icons.lock),
+                              border: OutlineInputBorder(),
+                            ),
+                            obscureText: true,
+                          ),
+                          if (!_isLogin) const SizedBox(height: 16),
+                          if (!_isLogin)
+                            TextFormField(
+                              decoration: const InputDecoration(
+                                labelText: 'Confirm Password',
+                                prefixIcon: Icon(Icons.lock),
+                                border: OutlineInputBorder(),
+                              ),
+                              obscureText: true,
+                            ),
+                          const SizedBox(height: 24),
+                          FilledButton(
+                            onPressed: () {},
+                            style: FilledButton.styleFrom(
+                              minimumSize: const Size(double.infinity, 50),
+                            ),
+                            child: Text(
+                              _isLogin ? 'LOGIN' : 'REGISTER',
+                              style: const TextStyle(fontSize: 16),
+                            ),
+                          ),
+                          const SizedBox(height: 12),
+                          TextButton(
+                            onPressed: _toggleAuthMode,
+                            child: Text(
+                              _isLogin
+                                  ? 'Create new account'
+                                  : 'I already have an account',
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

lightcloud_app/pubspec.yaml

@@ -0,0 +1,90 @@
+name: lightcloud
+description: "A new Flutter project."
+# The following line prevents the package from being accidentally published to
+# pub.dev using `flutter pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+# The following defines the version and build number for your application.
+# A version number is three numbers separated by dots, like 1.2.43
+# followed by an optional build number separated by a +.
+# Both the version and the builder number may be overridden in flutter
+# build by specifying --build-name and --build-number, respectively.
+# In Android, build-name is used as versionName while build-number used as versionCode.
+# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
+# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
+# Read more about iOS versioning at
+# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
+# In Windows, build-name is used as the major, minor, and patch parts
+# of the product and file versions while build-number is used as the build suffix.
+version: 1.0.0+1
+
+environment:
+  sdk: '>=3.4.3 <4.0.0'
+
+# Dependencies specify other packages that your package needs in order to work.
+# To automatically upgrade your package dependencies to the latest versions
+# consider running `flutter pub upgrade --major-versions`. Alternatively,
+# dependencies can be manually updated by changing the version numbers below to
+# the latest version available on pub.dev. To see which dependencies have newer
+# versions available, run `flutter pub outdated`.
+dependencies:
+  flutter:
+    sdk: flutter
+
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^1.0.6
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+  # The "flutter_lints" package below contains a set of recommended lints to
+  # encourage good coding practices. The lint set provided by the package is
+  # activated in the `analysis_options.yaml` file located at the root of your
+  # package. See that file for information about deactivating specific lint
+  # rules and activating additional ones.
+  flutter_lints: ^3.0.0
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter packages.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages

lightcloud_app/test/widget_test.dart

@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility in the flutter_test package. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:lightcloud/main.dart';
+
+void main() {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(const MyApp());
+
+    // Verify that our counter starts at 0.
+    expect(find.text('0'), findsOneWidget);
+    expect(find.text('1'), findsNothing);
+
+    // Tap the '+' icon and trigger a frame.
+    await tester.tap(find.byIcon(Icons.add));
+    await tester.pump();
+
+    // Verify that our counter has incremented.
+    expect(find.text('0'), findsNothing);
+    expect(find.text('1'), findsOneWidget);
+  });
+}

lightcloud_app/web/index.html

@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <!--
+    If you are serving your web app in a path other than the root, change the
+    href value below to reflect the base path you are serving from.
+
+    The path provided below has to start and end with a slash "/" in order for
+    it to work correctly.
+
+    For more details:
+    * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
+  -->
+  <base href="$FLUTTER_BASE_HREF">
+
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="A new Flutter project.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="lightcloud">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="icon" type="image/png" href="favicon.png"/>
+
+  <title>lightcloud</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <script src="flutter_bootstrap.js" async></script>
+</body>
+</html>

lightcloud_app/web/manifest.json

@@ -0,0 +1,35 @@
+{
+    "name": "lightcloud",
+    "short_name": "lightcloud",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "A new Flutter project.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ]
+}