refactor: simplify NSFW implementation by inlining logic

- Remove unused showNsfwContent prop (was only used in MemoDetail to pre-reveal NSFW, which defeats the purpose)
- Inline useNsfwContent hook logic directly into MemoView.tsx (only 3 lines, no reusability benefit)
- Delete web/src/components/MemoView/hooks/useNsfwContent.ts
- NSFW content now consistently starts hidden across all pages
- Maintains same user experience: click to reveal, no toggle back

This removes unnecessary indirection and prop threading while preserving functionality.

web/src/components/MemoView/MemoView.tsx

@@ -8,7 +8,7 @@ import MemoEditor from "../MemoEditor";
 import PreviewImageDialog from "../PreviewImageDialog";
 import { MemoBody, MemoHeader } from "./components";
 import { MEMO_CARD_BASE_CLASSES } from "./constants";
-import { useImagePreview, useMemoActions, useMemoHandlers, useNsfwContent } from "./hooks";
+import { useImagePreview, useMemoActions, useMemoHandlers } from "./hooks";
 import { MemoViewContext } from "./MemoViewContext";
 import type { MemoViewProps } from "./types";
 
@@ -23,7 +23,11 @@ const MemoView: React.FC<MemoViewProps> = (props: MemoViewProps) => {
   const readonly = memoData.creator !== currentUser?.name && !isSuperUser(currentUser);
   const parentPage = parentPageProp || "/";
 
-  const { nsfw, showNSFWContent, toggleNsfwVisibility } = useNsfwContent(memoData, props.showNsfwContent);
+  // NSFW content management: always blur content tagged with NSFW (case-insensitive)
+  const [showNSFWContent, setShowNSFWContent] = useState(false);
+  const nsfw = memoData.tags?.some((tag) => tag.toUpperCase() === "NSFW") ?? false;
+  const toggleNsfwVisibility = () => setShowNSFWContent((prev) => !prev);
+
   const { previewState, openPreview, setPreviewOpen } = useImagePreview();
   const { unpinMemo } = useMemoActions(memoData, isArchived);
 
@@ -76,7 +80,6 @@ const MemoView: React.FC<MemoViewProps> = (props: MemoViewProps) => {
           onEdit={openEditor}
           onGotoDetail={handleGotoMemoDetailPage}
           onUnpin={unpinMemo}
-          onToggleNsfwVisibility={toggleNsfwVisibility}
         />
 
         <MemoBody

web/src/components/MemoView/components/MemoHeader.tsx

 import { timestampDate } from "@bufbuild/protobuf/wkt";
-import { BookmarkIcon, EyeOffIcon, MessageCircleMoreIcon } from "lucide-react";
+import { BookmarkIcon, MessageCircleMoreIcon } from "lucide-react";
 import { useState } from "react";
 import { Link } from "react-router-dom";
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
@@ -16,19 +16,11 @@ import VisibilityIcon from "../../VisibilityIcon";
 import { useMemoViewContext, useMemoViewDerived } from "../MemoViewContext";
 import type { MemoHeaderProps } from "../types";
 
-const MemoHeader: React.FC<MemoHeaderProps> = ({
-  showCreator,
-  showVisibility,
-  showPinned,
-  onEdit,
-  onGotoDetail,
-  onUnpin,
-  onToggleNsfwVisibility,
-}) => {
+const MemoHeader: React.FC<MemoHeaderProps> = ({ showCreator, showVisibility, showPinned, onEdit, onGotoDetail, onUnpin }) => {
   const t = useTranslate();
   const [reactionSelectorOpen, setReactionSelectorOpen] = useState(false);
 
-  const { memo, creator, currentUser, parentPage, isArchived, readonly, showNSFWContent, nsfw } = useMemoViewContext();
+  const { memo, creator, currentUser, parentPage, isArchived, readonly } = useMemoViewContext();
   const { isInMemoDetailPage, commentAmount, relativeTimeFormat } = useMemoViewDerived();
 
   const displayTime = isArchived ? (
@@ -100,12 +92,6 @@ const MemoHeader: React.FC<MemoHeaderProps> = ({
           </TooltipProvider>
         )}
 
-        {nsfw && showNSFWContent && onToggleNsfwVisibility && (
-          <span className="cursor-pointer">
-            <EyeOffIcon className="w-4 h-auto text-primary" onClick={onToggleNsfwVisibility} />
-          </span>
-        )}
-
         <MemoActionMenu memo={memo} readonly={readonly} onEdit={onEdit} />
       </div>
     </div>

web/src/components/MemoView/hooks/index.ts

 export { useImagePreview } from "./useImagePreview";
 export { useMemoActions } from "./useMemoActions";
 export { useMemoHandlers } from "./useMemoHandlers";
-export { useNsfwContent } from "./useNsfwContent";

web/src/components/MemoView/hooks/useNsfwContent.ts

-import { useState } from "react";
-import type { Memo } from "@/types/proto/api/v1/memo_service_pb";
-
-export interface UseNsfwContentReturn {
-  nsfw: boolean;
-  showNSFWContent: boolean;
-  toggleNsfwVisibility: () => void;
-}
-
-export const useNsfwContent = (memo: Memo, initialShowNsfw?: boolean): UseNsfwContentReturn => {
-  const [showNSFWContent, setShowNSFWContent] = useState(initialShowNsfw ?? false);
-
-  // Always blur content tagged with NSFW
-  const nsfw = memo.tags?.includes("NSFW") ?? false;
-
-  return {
-    nsfw,
-    showNSFWContent,
-    toggleNsfwVisibility: () => setShowNSFWContent((prev) => !prev),
-  };
-};

web/src/components/MemoView/types.ts

@@ -6,7 +6,6 @@ export interface MemoViewProps {
   showCreator?: boolean;
   showVisibility?: boolean;
   showPinned?: boolean;
-  showNsfwContent?: boolean;
   className?: string;
   parentPage?: string;
 }
@@ -18,7 +17,6 @@ export interface MemoHeaderProps {
   onEdit: () => void;
   onGotoDetail: () => void;
   onUnpin: () => void;
-  onToggleNsfwVisibility?: () => void;
 }
 
 export interface MemoBodyProps {

web/src/pages/MemoDetail.tsx

@@ -93,7 +93,6 @@ const MemoDetail = () => {
             showCreator
             showVisibility
             showPinned
-            showNsfwContent
           />
           <div className="pt-8 pb-16 w-full">
             <h2 id="comments" className="sr-only">