feat: variantes responsives 320/800/1600 via sharp + srcset partout (Reels, cards, galerie, favoris)

src/app/api/uploads/finalize/route.ts

@@ -6,6 +6,7 @@ import { MediaType, UserRole } from "@/generated/prisma/enums";
 import { prisma } from "@/lib/prisma";
 import { classifyMime } from "@/lib/uploads";
 import { recordAudit } from "@/lib/admin/audit";
+import { generateImageVariants } from "@/lib/variants-server";
 
 export const runtime = "nodejs";
 
@@ -62,5 +63,27 @@ export async function POST(req: Request) {
     actorEmail: session.user.email ?? null,
     details: { carbetId: carbet.id, kind },
   });
+
+  // Génération des variantes responsives (best-effort, n'échoue pas la requête).
+  // L'utilisateur attend quelques secondes mais l'expérience derrière est bien meilleure.
+  try {
+    const variants = await generateImageVariants({
+      originalS3Key: parsed.data.s3Key,
+      mime: parsed.data.mime,
+    });
+    if (!variants.skipped) {
+      const okCount = variants.results.filter((r) => r.ok).length;
+      await recordAudit({
+        scope: "uploads",
+        event: "media.variants",
+        target: media.id,
+        actorEmail: session.user.email ?? null,
+        details: { generated: okCount, total: variants.results.length },
+      });
+    }
+  } catch (e) {
+    console.error("[uploads] variants generation error:", e);
+  }
+
   return NextResponse.json({ media });
 }