Add website favicon API and manual favicon profile updates.

Expose GET /tenants/{domain}/website/favicon for storefront tab icons, allow faviconMediaId on profile PATCH, and sync website API docs.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/business-profile/business-profile.service.ts

@@ -163,7 +163,12 @@ export class BusinessProfileService {
       await this.assertLogoMedia(businessId, BigInt(dto.logoDarkMediaId));
     }
 
+    if (dto.faviconMediaId !== undefined && dto.faviconMediaId !== null) {
+      await this.assertLogoMedia(businessId, BigInt(dto.faviconMediaId));
+    }
+
     const previousFaviconMediaId = business.faviconMediaId;
+    const faviconExplicitlySet = dto.faviconMediaId !== undefined;
     const logoChanged =
       dto.logoMediaId !== undefined &&
       (dto.logoMediaId === null
@@ -210,6 +215,13 @@ export class BusinessProfileService {
             : { connect: { id: BigInt(dto.logoDarkMediaId) } };
       }
 
+      if (dto.faviconMediaId !== undefined) {
+        data.faviconMedia =
+          dto.faviconMediaId === null
+            ? { disconnect: true }
+            : { connect: { id: BigInt(dto.faviconMediaId) } };
+      }
+
       if (Object.keys(data).length > 0) {
         await tx.business.update({
           where: { id: businessId },
@@ -234,7 +246,7 @@ export class BusinessProfileService {
       }
     });
 
-    if (logoChanged) {
+    if (logoChanged && !faviconExplicitlySet) {
       if (dto.logoMediaId === null) {
         await this.deleteFaviconMedia(previousFaviconMediaId);
       } else if (dto.logoMediaId != null) {

src/business-profile/dto/update-business-profile.dto.ts

@@ -115,6 +115,11 @@ export class UpdateBusinessProfileDto {
   @IsInt()
   logoDarkMediaId?: number | null;
 
+  @IsOptional()
+  @Type(() => Number)
+  @IsInt()
+  faviconMediaId?: number | null;
+
   @IsOptional()
   @IsArray()
   @Type(() => Number)