feat: add initial frontend setup with styles, types, and testing framework

- Created a global CSS file for styling the frontend with responsive design.
- Introduced TypeScript types for various entities including Research, Alpha, and Account.
- Implemented Playwright tests for account management and data synchronization workflows.
- Configured TypeScript with strict settings and included necessary libraries.
- Set up Vite as the build tool with React plugin and API proxy configuration.
- Added a Python script to initialize environment variables securely.

backend/migrations/env.py

@@ -0,0 +1,28 @@
+import asyncio
+
+from alembic import context
+from sqlalchemy.ext.asyncio import create_async_engine
+
+from app.config import Settings
+from app.models import Base
+
+
+def migrations(connection):
+    context.configure(connection=connection, target_metadata=Base.metadata, compare_type=True)
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run():
+    engine = create_async_engine(Settings().database_url)
+    async with engine.connect() as connection:
+        await connection.run_sync(migrations)
+    await engine.dispose()
+
+
+if context.is_offline_mode():
+    context.configure(url=Settings().database_url, target_metadata=Base.metadata, literal_binds=True)
+    with context.begin_transaction():
+        context.run_migrations()
+else:
+    asyncio.run(run())