feat(skincare): allow HEIC/HEIF uploads in skin analysis

backend/innercontext/api/skincare.py

@@ -140,7 +140,13 @@ async def analyze_skin_photos(
     if not (1 <= len(photos) <= 3):
         raise HTTPException(status_code=422, detail="Send between 1 and 3 photos.")
 
-    allowed = {"image/jpeg", "image/png", "image/webp"}
+    allowed = {
+        "image/heic",
+        "image/heif",
+        "image/jpeg",
+        "image/png",
+        "image/webp",
+    }
     parts: list[genai_types.Part] = []
     for photo in photos:
         if photo.content_type not in allowed:

frontend/src/routes/skin/+page.svelte

@@ -192,7 +192,7 @@
 					</p>
 					<input
 						type="file"
-						accept="image/jpeg,image/png,image/webp"
+						accept="image/heic,image/heif,image/jpeg,image/png,image/webp"
 						multiple
 						onchange={handleFileSelect}
 						class="block w-full text-sm text-muted-foreground