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/lib/services/site-settings.ts

@@ -1,6 +1,7 @@
 import "server-only";
 
 import { FALLBACK_HOTEL_NAME } from "@/lib/brand";
+import { logger } from "@/lib/logger";
 import { prisma } from "@/lib/prisma";
 import { redis } from "@/lib/redis";
 
@@ -25,6 +26,7 @@ class SiteSettings {
 			});
 			return new Map(rows.map((r) => [r.key, r.value]));
 		} catch {
+			logger.warn("Failed to load site settings from database, using defaults");
 			return new Map(Object.entries(DEFAULTS));
 		}
 	}
@@ -38,7 +40,7 @@ class SiteSettings {
 					return new Map(Object.entries(parsed));
 				}
 			} catch {
-				// Redis unavailable — fall through
+				logger.warn("Redis cache read failed for site settings");
 			}
 		}
 
@@ -56,7 +58,7 @@ class SiteSettings {
 					JSON.stringify(obj),
 				);
 			} catch {
-				// non-critical
+				logger.warn("Failed to write site settings to Redis cache");
 			}
 		}
 
@@ -78,13 +80,12 @@ class SiteSettings {
 		return fallback;
 	}
 
-	async getMany(
-		keys: string[],
-	): Promise<Record<string, string | null>> {
+	async getMany(keys: string[]): Promise<Record<string, string | null>> {
 		const map = await this.load();
 		const result: Record<string, string | null> = {};
 		for (const key of keys) {
-			result[key] = map.get(key) ?? (key in DEFAULTS ? DEFAULTS[key] as string : null);
+			result[key] =
+				map.get(key) ?? (key in DEFAULTS ? (DEFAULTS[key] as string) : null);
 		}
 		return result;
 	}
@@ -111,7 +112,7 @@ class SiteSettings {
 			try {
 				await redis.del(REDIS_CACHE_KEY);
 			} catch {
-				// non-critical
+				logger.warn("Failed to invalidate Redis cache for site settings");
 			}
 		}
 	}