refactor: move contentype to header

server/context.ts

@@ -16,6 +16,7 @@ type CreateContextOptions = {
   uid?: string | null
   url: string
   webToken?: string
+  contentType?: string
 }
 
 /** Use this helper for:
@@ -30,6 +31,7 @@ export function createContextInner(opts: CreateContextOptions) {
     uid: opts.uid,
     url: opts.url,
     webToken: opts.webToken,
+    contentType: opts.contentType,
   }
 }
 
@@ -58,6 +60,7 @@ export function createContext() {
     uid: h.get("x-uid"),
     url: h.get("x-url")!,
     webToken: webviewTokenCookie?.value,
+    contentType: h.get("x-contenttype")!,
   })
 }