feat(ux): R1+R2 审稿裁决人体学 — 冲突卡内联片段 + 分组/排序/跳下一条/主次按钮

R1: 新 lib/review/snippet.ts 从 where 解析段号取终稿命中段预览，ConflictCard 渲染引用块。
R2: 新 lib/review/grouping.ts 按 type 分组+严重度排序（仅改显示顺序，保留原始 index 守 conflict_index 不变量），组计数徽标、跳到下一条未裁决（环回）、采纳改法主按钮/忽略手改次级。
TDD: snippet 8 测 + grouping 10 测。前端门禁绿: lint/tsc/vitest 201/build。

apps/web/components/review/ReviewReport.tsx

@@ -19,6 +19,12 @@ import {
   normalizeForeshadowSug,
   normalizePace,
 } from "@/lib/review/history";
+import {
+  displayOrder,
+  groupConflicts,
+  nextUnresolvedInOrder,
+} from "@/lib/review/grouping";
+import { conflictSnippet } from "@/lib/review/snippet";
 import { useAccept } from "@/lib/review/useAccept";
 import { useReviewStream } from "@/lib/review/useReviewStream";
 import type { ReviewConflict, StyleDriftSegment } from "@/lib/review/sse";
@@ -139,12 +145,26 @@ export function ReviewReport({
   const onNote = (index: number, note: string): void =>
     setDrafts((prev) => setNote(prev, index, note));
 
+  // R2：按 type 分组 + 严重度排序（仅改显示顺序，每条仍携原始 index）。
+  const groups = useMemo(() => groupConflicts(conflicts), [conflicts]);
+  const order = useMemo(() => displayOrder(groups), [groups]);
+
   const jumpToCard = (index: number): void => {
     setFocusedIndex(index);
     document
       .getElementById(`conflict-card-${index}`)
       ?.scrollIntoView({ behavior: "smooth", block: "center" });
   };
+
+  // R2：跳到显示顺序中的下一条未裁决（环回）；全决则提示完成。
+  const jumpToNextUnresolved = (): void => {
+    const next = nextUnresolvedInOrder(order, drafts, focusedIndex);
+    if (next === null) {
+      toast("全部冲突已裁决。", "success");
+      return;
+    }
+    jumpToCard(next);
+  };
   const jumpToAnchor = (index: number): void => {
     setFocusedIndex(index);
     document
@@ -276,20 +296,54 @@ export function ReviewReport({
                   : "进页未带审稿留痕，点「重新审稿」开始。"}
               </p>
             ) : (
-              <ul className="space-y-3">
-                {conflicts.map((c, i) => (
-                  <ConflictCard
-                    key={i}
-                    index={i}
-                    conflict={c}
-                    draft={drafts[i] ?? { verdict: null, note: "" }}
-                    missing={missing.has(i)}
-                    onVerdict={onVerdict}
-                    onNote={onNote}
-                    onJump={jumpToAnchor}
-                  />
+              <div className="space-y-4">
+                {/* R2：未裁决进度 + 跳到下一条未裁决 */}
+                <div className="flex items-center justify-between text-xs text-ink-soft">
+                  <span>
+                    {unresolved > 0 ? (
+                      <span className="text-conflict">
+                        {unresolved}/{conflictCount} 待裁决
+                      </span>
+                    ) : (
+                      <span className="text-pass">✓ 全部已裁决</span>
+                    )}
+                  </span>
+                  <button
+                    type="button"
+                    onClick={jumpToNextUnresolved}
+                    disabled={unresolved === 0}
+                    className="rounded border border-line px-2 py-0.5 hover:border-cinnabar hover:text-cinnabar disabled:cursor-not-allowed disabled:opacity-40"
+                  >
+                    跳到下一条未裁决 ▾
+                  </button>
+                </div>
+
+                {groups.map((group) => (
+                  <div key={group.type}>
+                    <h3 className="mb-2 flex items-center gap-2 text-xs font-semibold text-ink">
+                      {group.type}
+                      <span className="rounded-full bg-[var(--color-conflict)]/10 px-2 py-0.5 font-mono text-conflict">
+                        {group.items.length}
+                      </span>
+                    </h3>
+                    <ul className="space-y-3">
+                      {group.items.map(({ conflict: c, index: i }) => (
+                        <ConflictCard
+                          key={i}
+                          index={i}
+                          conflict={c}
+                          draft={drafts[i] ?? { verdict: null, note: "" }}
+                          missing={missing.has(i)}
+                          snippet={conflictSnippet(finalText, c.where)}
+                          onVerdict={onVerdict}
+                          onNote={onNote}
+                          onJump={jumpToAnchor}
+                        />
+                      ))}
+                    </ul>
+                  </div>
                 ))}
-              </ul>
+              </div>
             )}
           </section>