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/script.py.mako

@@ -0,0 +1,14 @@
+"""${message}"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}