feat(compose): 正文内嵌隐藏块并升级 Markdown 编辑器

去掉整帖可见性表单，改为 :::hide 按块脱敏；工具栏补齐代码块、链接/图片对话框与粘贴拖拽上传。

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

frontend/components/PostComposer.tsx

@@ -17,13 +17,11 @@ import {
 } from "@/lib/api";
 import {
   POST_TYPES,
-  CONTENT_ACCESS,
   BOUNTY_EXPIRE_DAYS,
   LOTTERY_EXPIRE_DAYS,
   POLL_EXPIRE_DAYS,
   normalizePostType,
   type PostTypeValue,
-  type ContentAccessValue,
 } from "@/lib/postMeta";
 import { toast } from "@/lib/toast";
 import MarkdownEditor from "@/components/MarkdownEditor";
@@ -44,8 +42,6 @@ type ComposeDraft = {
   tags: string;
   boardId: number;
   postType?: string;
-  contentAccess?: string;
-  accessPoints?: number;
   typeMeta?: string;
   updatedAt: number;
 };
@@ -128,8 +124,6 @@ type EditProps = {
   initialContent: string;
   initialTags?: string;
   initialPostType?: string;
-  initialContentAccess?: string;
-  initialAccessPoints?: number;
   initialTypeMeta?: string;
   initialAttachments?: PostAttachment[];
   /** 投票帖：有票后禁止改选项 */
@@ -162,14 +156,6 @@ export default function PostComposer(props: PostComposerProps) {
   const [postType, setPostType] = useState<PostTypeValue>(
     normalizePostType(isCreate ? "discussion" : props.initialPostType)
   );
-  const [contentAccess, setContentAccess] = useState<ContentAccessValue>(
-    (isCreate
-      ? "public"
-      : (props.initialContentAccess as ContentAccessValue) || "public") as ContentAccessValue
-  );
-  const [accessPoints, setAccessPoints] = useState(
-    isCreate ? 10 : props.initialAccessPoints || 10
-  );
   const [typeMeta, setTypeMeta] = useState(
     isCreate ? "" : props.initialTypeMeta || ""
   );
@@ -364,8 +350,6 @@ export default function PostComposer(props: PostComposerProps) {
         tags: serializeTags(tagList),
         boardId,
         postType,
-        contentAccess,
-        accessPoints,
         typeMeta,
         updatedAt: Date.now(),
       });
@@ -380,8 +364,6 @@ export default function PostComposer(props: PostComposerProps) {
     tagList,
     boardId,
     postType,
-    contentAccess,
-    accessPoints,
     typeMeta,
   ]);
 
@@ -392,10 +374,6 @@ export default function PostComposer(props: PostComposerProps) {
     setTagList(parseTags(draftBanner.tags || ""));
     if (draftBanner.boardId) setBoardId(draftBanner.boardId);
     if (draftBanner.postType) setPostType(normalizePostType(draftBanner.postType));
-    if (draftBanner.contentAccess) {
-      setContentAccess(draftBanner.contentAccess as ContentAccessValue);
-    }
-    if (draftBanner.accessPoints) setAccessPoints(draftBanner.accessPoints);
     if (draftBanner.typeMeta) setTypeMeta(draftBanner.typeMeta);
     setDraftBanner(null);
     skipDraftSave.current = false;
@@ -533,7 +511,6 @@ export default function PostComposer(props: PostComposerProps) {
     title.trim().length > 0 &&
     content.trim().length > 0 &&
     (isCreate ? boardsReady && boardId > 0 : true) &&
-    (contentAccess !== "points" || accessPoints > 0) &&
     (postType !== "poll" ||
       pollOptions.map((o) => o.trim()).filter(Boolean).length >= 2) &&
     (postType !== "bounty" ||
@@ -609,8 +586,6 @@ export default function PostComposer(props: PostComposerProps) {
           content: content.trim(),
           tags,
           post_type: postType,
-          content_access: contentAccess,
-          access_points: contentAccess === "points" ? accessPoints : 0,
           type_meta: meta,
           attachment_ids: attIds,
         });
@@ -634,8 +609,6 @@ export default function PostComposer(props: PostComposerProps) {
           title: title.trim(),
           content: content.trim(),
           tags,
-          content_access: contentAccess,
-          access_points: contentAccess === "points" ? accessPoints : 0,
           type_meta: meta,
           attachment_ids: attIds,
         });
@@ -818,42 +791,6 @@ export default function PostComposer(props: PostComposerProps) {
                   />
                 </div>
               </div>
-
-              <div className="j13-compose-meta-access">
-                <label className="field-label" htmlFor="compose-access">
-                  正文可见性
-                </label>
-                <select
-                  id="compose-access"
-                  className="j13-compose-field"
-                  value={contentAccess}
-                  disabled={loading}
-                  onChange={(e) => setContentAccess(e.target.value as ContentAccessValue)}
-                >
-                  {CONTENT_ACCESS.map((a) => (
-                    <option key={a.value} value={a.value}>
-                      {a.label}
-                    </option>
-                  ))}
-                </select>
-                {contentAccess === "points" && (
-                  <div className="mt-2 flex items-center gap-2">
-                    <label className="meta text-[12.5px] shrink-0" htmlFor="compose-access-pts">
-                      所需积分
-                    </label>
-                    <input
-                      id="compose-access-pts"
-                      type="number"
-                      min={1}
-                      max={100000}
-                      value={accessPoints}
-                      disabled={loading}
-                      onChange={(e) => setAccessPoints(Number(e.target.value) || 0)}
-                      className="j13-compose-field !py-1.5 w-28"
-                    />
-                  </div>
-                )}
-              </div>
             </div>
 
         </section>
@@ -1241,7 +1178,7 @@ export default function PostComposer(props: PostComposerProps) {
               disabled={loading}
               rows={18}
               placeholder={
-                "从这里开始写正文…\n\n支持 Markdown；可用工具栏插入格式与图片。可点全屏沉浸写作。"
+                "从这里开始写正文…\n\n工具栏可插入格式、代码块、链接、图片与隐藏内容（登录/回复/积分可见）。支持粘贴与拖拽上传图片。"
               }
               onSubmitShortcut={() => {
                 if (canSubmit) void handleSubmit();