feat: initialize thoughts-frontend with Next.js, TypeScript, and ESLint

- Add ESLint configuration for Next.js and TypeScript support.
- Create Next.js configuration file with standalone output option.
- Initialize package.json with scripts for development, build, and linting.
- Set up PostCSS configuration for Tailwind CSS.
- Add SVG assets for UI components.
- Create TypeScript configuration for strict type checking and module resolution.

thoughts-backend/utils/src/db.rs

@@ -0,0 +1,8 @@
+use migration::{sea_orm::DatabaseConnection, DbErr, Migrator, MigratorTrait, SchemaManager};
+
+pub async fn migrate(conn: &DatabaseConnection) -> Result<(), DbErr> {
+    let schema_manager = SchemaManager::new(conn);
+    Migrator::up(conn, None).await?;
+    assert!(schema_manager.has_table("user").await?);
+    Ok(())
+}