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.

Dockerfile.backend

@@ -0,0 +1,15 @@
+FROM ghcr.io/astral-sh/uv:0.7.20 AS uv
+FROM python:3.12-slim-bookworm
+COPY --from=uv /uv /usr/local/bin/uv
+ENV PYTHONDONTWRITEBYTECODE=1 PYTHONUNBUFFERED=1 UV_COMPILE_BYTECODE=1 PATH="/app/.venv/bin:$PATH"
+WORKDIR /app
+COPY backend/pyproject.toml backend/uv.lock ./
+RUN uv sync --frozen --no-dev --no-install-project
+COPY backend/app ./app
+COPY backend/alembic.ini ./
+COPY backend/migrations ./migrations
+RUN useradd --create-home --uid 10001 wq && chown -R wq:wq /app
+USER wq
+EXPOSE 8000
+# The durable runner has one owner. Multiple workers/replicas are not supported.
+CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:create_app --factory --host 0.0.0.0 --port 8000 --workers 1 --proxy-headers"]