Improvements: remove dead config, fix ESM, add URL validation, unify types, add missing logging

- Remove .prettierrc (dead config, Biome replaces Prettier)
- Rename lighthouserc.json to lighthouserc.cjs with module.exports for ESM compat
- Add logger.warn to empty catch blocks in auth, register, site-settings, prisma-cache, redis, security, rate-limit
- Unify ActionResult type: action-helper.ts uses 'ok' consistent with safe-action-shared.ts
- Add noUnusedLocals + noUnusedParameters to tsconfig + fix 25 pre-existing unused vars
- Replace barrel export src/types/index.ts with direct @/types/common imports
- Make trustHost conditional (development only) in auth.ts
- Add pre-flight URL validation to update-Nitrov3.sh to catch image.library.url misconfigurations
- Improve NITRO_IMAGE_LIBRARY_URL content validation in pre-flight & post-compute checks

src/actions/admin-theme.ts

@@ -7,6 +7,7 @@ import { PERMS } from "@/lib/permissions";
 import { prisma } from "@/lib/prisma";
 import { siteSettings } from "@/lib/services/site-settings";
 import { logStaffActivity } from "@/lib/services/staff-activity";
+import { ensureReadableThemeColors } from "@/lib/theme-contrast";
 import {
 	deleteCustomThemeStore,
 	getCustomTheme,
@@ -15,7 +16,6 @@ import {
 } from "@/lib/theme-custom-store";
 import { FONTS, PRESETS, THEME_COLOR_KEYS } from "@/lib/theme-presets";
 import { presetSettings, settingKey } from "@/lib/theme-settings";
-import { ensureReadableThemeColors } from "@/lib/theme-contrast";
 
 // Only hex/keyword colour values are accepted (matches ThemeVars' sanitiser).
 const COLOR_RE = /^[#a-zA-Z0-9(),.\s%-]+$/;
@@ -46,7 +46,10 @@ export async function saveTheme(formData: FormData): Promise<void> {
 			}
 			const fixed = ensureReadableThemeColors(bag);
 			for (const [key, value] of Object.entries(fixed)) {
-				await writeSetting(settingKey(key as (typeof THEME_COLOR_KEYS)[number], mode), value);
+				await writeSetting(
+					settingKey(key as (typeof THEME_COLOR_KEYS)[number], mode),
+					value,
+				);
 			}
 		}
 		const ADMIN_KEYS = [