deps: update esbuild to 0.27.4, rollup to 4.60.0, vite to 7.3.1

deps: update esbuild to 0.27.4, rollup to 4.60.0, vite to 7.3.1

- bump esbuild and all platform-specific binaries from 0.25.10 to 0.27.4
- bump rollup and all platform-specific binaries from 4.52.3 to 4.60.0
- bump vite from 7.1.7 to 7.3.1 (esbuild peer dep updated to ^0.27.0)
- bump dompurify from 3.2.7 to 3.3.3

web: improve cover image retry logic
- increase maxRetries default from 3 to 5
- reduce initial retryDelay from 1000ms to 500ms
- implement exponential backoff: delay = retryDelay * 2^(retryCount - 1)
- add detailed logging for retries and final failure

rust: minor cleanup
- remove unused imports (watch, Url, AudioSegment, SyncMarker)
- add tracing debug logs for cache file requests
- handle missing files gracefully with warning + client retry hint
- add #[allow(async_fn_in_trait)] where needed

pmoapp/webapp/src/composables/useCoverImage.ts

@@ -10,7 +10,7 @@ export function useCoverImage(
   imageUrl: Ref<string | null | undefined>,
   options: CoverImageOptions = {},
 ) {
-  const { maxRetries = 3, retryDelay = 1000, forceReload = true } = options;
+  const { maxRetries = 5, retryDelay = 500, forceReload = true } = options;
 
   const imageLoaded = ref(false);
   const imageError = ref(false);
@@ -66,6 +66,9 @@ export function useCoverImage(
     if (retryCount.value < maxRetries) {
       retryCount.value++;
 
+      // Backoff : 500ms, 1s, 2s, 4s, 8s — rapide au début pour les covers
+      // en cours de téléchargement, plus espacé ensuite pour les erreurs réseau
+      const delay = retryDelay * Math.pow(2, retryCount.value - 1);
       setTimeout(() => {
         if (!currentUrl.value) return;
 
@@ -74,7 +77,7 @@ export function useCoverImage(
           currentUrl.value,
           retryCount.value,
         );
-      }, retryDelay * retryCount.value); // Exponential backoff
+      }, delay);
     } else {
       console.error(
         `[useCoverImage] Max retries (${maxRetries}) reached for: ${currentUrl.value}`,
@@ -102,8 +105,15 @@ export function useCoverImage(
 
     // Retry if we haven't reached max retries
     if (retryCount.value < maxRetries) {
+      const delay = retryDelay * Math.pow(2, retryCount.value);
+      console.log(
+        `[useCoverImage] Scheduling retry ${retryCount.value + 1}/${maxRetries} in ${delay}ms for: ${currentUrl.value}`,
+      );
       retryLoad();
     } else {
+      console.error(
+        `[useCoverImage] Giving up after ${maxRetries} retries for: ${currentUrl.value}`,
+      );
       imageError.value = true;
     }
   }