fix: resolve Sharp 0.35.1 and BullMQ type incompatibilities after dep bumps

Sharp 0.35.1 moved FormatEnum to a namespace export and removed "avif"
from FormatEnum (now a separate literal in toFormat). BullMQ 5.78.1
bundles ioredis 5.10.1 while we have 5.11.1, causing structural type
mismatch. Also fixes new Biome 1.9 lint rules.

packages/image-engine/src/operations/compress.ts

@@ -31,7 +31,7 @@ export async function compress(image: Sharp, options: CompressOptions): Promise<
   const safeDetected = NO_ENCODER.has(detected) ? "png" : detected;
   const outputFormat = (FORMAT_MAP[format ?? ""] ??
     FORMAT_MAP[safeDetected] ??
-    safeDetected) as keyof import("sharp").FormatEnum;
+    safeDetected) as keyof sharp.FormatEnum;
 
   if (targetSizeBytes !== undefined) {
     if (targetSizeBytes <= 0) {
@@ -52,7 +52,7 @@ export async function compress(image: Sharp, options: CompressOptions): Promise<
 async function findBestQuality(
   inputBuffer: Buffer,
   resize: { width: number; height: number } | null,
-  format: keyof import("sharp").FormatEnum,
+  format: keyof sharp.FormatEnum,
   targetBytes: number,
 ): Promise<number | null> {
   let low = 1;
@@ -82,7 +82,7 @@ async function findBestQuality(
 
 async function compressToTargetSize(
   inputBuffer: Buffer,
-  format: keyof import("sharp").FormatEnum,
+  format: keyof sharp.FormatEnum,
   targetBytes: number,
 ): Promise<Sharp> {
   const quality = await findBestQuality(inputBuffer, null, format, targetBytes);

packages/image-engine/src/operations/convert.ts

@@ -1,3 +1,4 @@
+import type sharp from "sharp";
 import type { ConvertOptions, Sharp } from "../types.js";
 
 /**
@@ -31,5 +32,5 @@ export async function convert(image: Sharp, options: ConvertOptions): Promise<Sh
     formatOptions.quality = quality;
   }
 
-  return image.toFormat(sharpFormat as keyof import("sharp").FormatEnum, formatOptions);
+  return image.toFormat(sharpFormat as keyof sharp.FormatEnum, formatOptions);
 }