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.

.dockerignore

@@ -0,0 +1,19 @@
+.git
+.env
+.env.*
+.local
+**/.venv
+**/node_modules
+**/__pycache__
+**/.pytest_cache
+**/.ruff_cache
+frontend/dist
+frontend/test-results
+frontend/playwright-report
+*.dump
+output
+.playwright-cli
+backend/tests
+frontend/tests
+**/*.tsbuildinfo
+backups