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/file.rs

@@ -0,0 +1,22 @@
+use std::process::Command;
+
+fn touch(file_name: &str) {
+    if cfg!(target_os = "windows") {
+        Command::new("cmd")
+            .args(["/C", &format!("type nul >> {}", file_name)])
+            .output()
+            .expect("failed to execute touch");
+    } else {
+        Command::new("touch")
+            .arg(file_name)
+            .output()
+            .expect("failed to execute touch");
+    }
+}
+
+pub fn create_dev_db(db_url: &str) {
+    let prefix = "sqlite://";
+    if let Some(file_name) = db_url.strip_prefix(prefix) {
+        touch(file_name);
+    }
+}