fix(frontend): .env reaches the build for $env/static, the runtime image stays without it; eslint + prettier as an alternative to biome; image named with dashes

template/{{ part_dir }}/{% if linter == 'eslint' %}.prettierrc{% endif %}

@@ -0,0 +1,6 @@
+{
+  "trailingComma": "es5",
+  "plugins": ["prettier-plugin-svelte", "prettier-plugin-tailwindcss"],
+  "overrides": [{ "files": "*.svelte", "options": { "parser": "svelte" } }],
+  "tailwindStylesheet": "./src/routes/layout.css"
+}