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/app/cli.py

@@ -0,0 +1,33 @@
+"""Administrative commands run inside the backend container."""
+
+import argparse
+import asyncio
+import getpass
+
+from sqlalchemy import delete
+
+from .config import Settings
+from .db import create_database
+from .models import Admin, LoginSession
+from .security import password_hasher
+
+
+async def reset_password():
+    password = getpass.getpass("New admin password (12+ characters): ")
+    if len(password) < 12 or password != getpass.getpass("Confirm password: "):
+        raise SystemExit("Password too short or confirmation does not match")
+    engine, sessions = create_database(Settings().database_url)
+    async with sessions() as db:
+        admin = await db.get(Admin, 1)
+        admin.password_hash = password_hasher.hash(password)
+        await db.execute(delete(LoginSession))
+        await db.commit()
+    await engine.dispose()
+    print("Admin password updated; all system sessions revoked.")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("command", choices=["reset-password"])
+    parser.parse_args()
+    asyncio.run(reset_password())