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/register.ts

@@ -4,6 +4,7 @@ import { redirect } from "next/navigation";
 import { z } from "zod";
 import { sendVerification } from "@/actions/email-verify";
 import { hashPassword } from "@/lib/auth/password";
+import { logger } from "@/lib/logger";
 import { prisma } from "@/lib/prisma";
 import { clientIp, rateLimit } from "@/lib/rate-limit";
 import { captchaConfig, verifyCaptcha } from "@/lib/services/captcha";
@@ -100,6 +101,7 @@ export async function register(
 		});
 		if (existing) return "That username is already taken";
 	} catch {
+		logger.warn("Username uniqueness check failed during registration");
 		return "Registration is temporarily unavailable";
 	}
 
@@ -122,10 +124,11 @@ export async function register(
 			try {
 				await sendVerification(mail);
 			} catch {
-				// No-op: account is created; user can request a new link later.
+				logger.warn("Failed to send verification email after registration");
 			}
 		}
 	} catch {
+		logger.warn("Account creation failed");
 		return "Could not create the account (is the username unique?)";
 	}