feat(shared): add errors lib, question-content, and update permissions and UI

- Add errors lib for standardized error handling

- Add question-content lib for question content processing

- Update action-utils, ai/provider-config, auth-guard, permissions, types/permissions

- Update UI sheet component

- Update proxy middleware

src/shared/components/ui/sheet.tsx

@@ -46,9 +46,11 @@ function SheetContent({
   className,
   children,
   side = "right",
+  hideClose = false,
   ...props
 }: React.ComponentProps<typeof SheetPrimitive.Content> & {
   side?: "top" | "bottom" | "left" | "right"
+  hideClose?: boolean
 }) {
   return (
     <SheetPortal>
@@ -70,10 +72,12 @@ function SheetContent({
         {...props}
       >
         {children}
-        <SheetPrimitive.Close className="ring-offset-background focus:ring-ring data-[state=open]:bg-secondary absolute top-4 right-4 rounded-sm opacity-70 transition-opacity hover:opacity-100 focus:ring-2 focus:ring-offset-2 focus:outline-none disabled:pointer-events-none">
-          <XIcon className="size-4" />
-          <span className="sr-only">Close</span>
-        </SheetPrimitive.Close>
+        {hideClose ? null : (
+          <SheetPrimitive.Close className="ring-offset-background focus:ring-ring data-[state=open]:bg-secondary absolute top-4 right-4 rounded-sm opacity-70 transition-opacity hover:opacity-100 focus:ring-2 focus:ring-offset-2 focus:outline-none disabled:pointer-events-none">
+            <XIcon className="size-4" />
+            <span className="sr-only">Close</span>
+          </SheetPrimitive.Close>
+        )}
       </SheetPrimitive.Content>
     </SheetPortal>
   )