Add initial project structure with backend and frontend setup

- Created backend structure with Go, including main application logic and API endpoints.
- Added Docker support for both development and production environments.
- Introduced frontend using Nuxt 3 with Tailwind CSS for styling.
- Included configuration files for Docker and environment variables.
- Established basic documentation for contributing, development, and deployment processes.
- Set up .gitignore and .dockerignore files to manage ignored files in the repository.

frontend-nuxt/plugins/vite-uri-guard.ts

@@ -0,0 +1,31 @@
+import type { Plugin } from 'vite'
+
+/**
+ * Dev-only: reject requests with malformed URIs before Vite's static/transform
+ * middleware runs decodeURI(), which would throw and crash the server.
+ * See: https://github.com/vitejs/vite/issues/6482
+ */
+export function viteUriGuard(): Plugin {
+  return {
+    name: 'vite-uri-guard',
+    apply: 'serve',
+    configureServer(server) {
+      const guard = (req: any, res: any, next: () => void) => {
+        const raw = req.url ?? req.originalUrl ?? ''
+        try {
+          decodeURI(raw)
+          const path = raw.includes('?') ? raw.slice(0, raw.indexOf('?')) : raw
+          if (path) decodeURI(path)
+        } catch {
+          res.statusCode = 400
+          res.setHeader('Content-Type', 'text/plain')
+          res.end('Bad Request: malformed URI')
+          return
+        }
+        next()
+      }
+      // Prepend so we run before Vite's static/transform middleware (which calls decodeURI)
+      server.middlewares.stack.unshift({ route: '', handle: guard })
+    },
+  }
+}