feat(value_rank): 社交边标签改为昵称并增加恶搞关系文案

- 关系图边标签新增双向@次数明细，并在边中点展示

- 标签从 wxid 改为群昵称显示，提升可读性

- 增加恶搞关系标签规则（如双向奔赴、单向上头、单箭头输出等）

plugins/value_rank/main.py

@@ -1247,10 +1247,37 @@ class ValueRankPlugin(MessagePluginInterface):
         if len(selected_nodes) < 2:
             return None
 
-        selected_edges: List[Tuple[str, str, float, float]] = []
+        # 记录每条无向边对应的双向明细次数：
+        # pair_dir_count[(a,b)] = {"a_to_b": x, "b_to_a": y}
+        # 这样在图上可以直接标注“双向@次数”，避免只看总互动分看不出方向关系。
+        pair_dir_count: Dict[Tuple[str, str], Dict[str, int]] = {}
+        for row in edge_rows:
+            uid_a = str(row.get("from_user_id") or "").strip()
+            uid_b = str(row.get("to_user_id") or "").strip()
+            if not uid_a or not uid_b or uid_a == uid_b:
+                continue
+            a, b = (uid_a, uid_b) if uid_a < uid_b else (uid_b, uid_a)
+            mention_count = int(float(row.get("mention_count_window") or 0.0))
+            bucket = pair_dir_count.setdefault((a, b), {"a_to_b": 0, "b_to_a": 0})
+            if uid_a == a and uid_b == b:
+                bucket["a_to_b"] += mention_count
+            else:
+                bucket["b_to_a"] += mention_count
+
+        selected_edges: List[Tuple[str, str, float, float, int, int]] = []
         for (a, b), data in edge_map.items():
             if a in selected_set and b in selected_set:
-                selected_edges.append((a, b, float(data.get("mention_count", 0.0)), float(data.get("score", 0.0))))
+                dir_bucket = pair_dir_count.get((a, b), {"a_to_b": 0, "b_to_a": 0})
+                selected_edges.append(
+                    (
+                        a,
+                        b,
+                        float(data.get("mention_count", 0.0)),
+                        float(data.get("score", 0.0)),
+                        int(dir_bucket.get("a_to_b", 0)),
+                        int(dir_bucket.get("b_to_a", 0)),
+                    )
+                )
         if not selected_edges:
             return None
 
@@ -1274,7 +1301,7 @@ class ValueRankPlugin(MessagePluginInterface):
         self,
         group_id: str,
         selected_nodes: List[str],
-        selected_edges: List[Tuple[str, str, float, float]],
+        selected_edges: List[Tuple[str, str, float, float, int, int]],
         partner_map: Dict[str, set],
         node_score_map: Dict[str, float],
     ) -> str:
@@ -1303,7 +1330,11 @@ class ValueRankPlugin(MessagePluginInterface):
 
         cm = ContactManager.get_instance()
         edge_svg_parts: List[str] = []
-        for a, b, mention_count, score in selected_edges:
+        # 双向@标签层：
+        # 1. 每条边中点标注“a->b / b->a”；
+        # 2. 使用白底半透明标签提升可读性，避免与连线重叠难辨识。
+        edge_label_parts: List[str] = []
+        for a, b, mention_count, score, a_to_b_count, b_to_a_count in selected_edges:
             ax, ay = pos_map[a]
             bx, by = pos_map[b]
             normalized = max(0.12, min(score / max_edge_score, 1.0))
@@ -1313,6 +1344,33 @@ class ValueRankPlugin(MessagePluginInterface):
                 f'<line x1="{ax:.1f}" y1="{ay:.1f}" x2="{bx:.1f}" y2="{by:.1f}" '
                 f'stroke="rgba(33, 150, 243, {opacity:.3f})" stroke-width="{stroke_width:.2f}" />'
             )
+            # 通过字典序固定方向，确保同一条边每次渲染文案方向一致。
+            # 标签文案改为“昵称 + 双向次数 + 恶搞关系标签”，不再展示 wxid。
+            mx, my = (ax + bx) / 2.0, (ay + by) / 2.0
+            nick_a = cm.get_group_name(group_id, a) or a
+            nick_b = cm.get_group_name(group_id, b) or b
+
+            total_count = int(a_to_b_count) + int(b_to_a_count)
+            diff_count = abs(int(a_to_b_count) - int(b_to_a_count))
+            if total_count >= 12 and diff_count <= 2:
+                relation_tag = "双向奔赴"
+            elif diff_count >= 8 and max(int(a_to_b_count), int(b_to_a_count)) >= 10:
+                relation_tag = "单向上头"
+            elif total_count <= 2:
+                relation_tag = "点头之交"
+            elif int(a_to_b_count) == 0 or int(b_to_a_count) == 0:
+                relation_tag = "单箭头输出"
+            else:
+                relation_tag = "互相捧场"
+
+            label_text = f"{nick_a}→{nick_b} {a_to_b_count}/{b_to_a_count} ｜ {relation_tag}"
+            safe_label = html.escape(label_text)
+            edge_label_parts.append(
+                f'<g transform="translate({mx:.1f},{my:.1f})">'
+                f'<rect x="-170" y="-12" width="340" height="24" rx="8" ry="8" fill="rgba(255,255,255,0.82)"></rect>'
+                f'<text x="0" y="5" text-anchor="middle" font-size="12" fill="#4E5F7D">{safe_label}</text>'
+                f'</g>'
+            )
 
         # 节点头像层拆分为 defs + body 两段：
         # 1. defs 内定义每个节点的裁剪路径，避免头像越界；
@@ -1399,6 +1457,7 @@ class ValueRankPlugin(MessagePluginInterface):
             "__GROUP_TITLE__": group_title,
             "__SUMMARY_TEXT__": summary_text,
             "__EDGE_SVG__": "".join(edge_svg_parts),
+            "__EDGE_LABELS__": "".join(edge_label_parts),
             "__NODE_DEFS__": "".join(node_defs_parts),
             "__NODE_SVG__": "".join(node_svg_parts),
         }

plugins/value_rank/templates/social_graph.html

@@ -53,6 +53,7 @@
           __NODE_DEFS__
         </defs>
         __EDGE_SVG__
+        __EDGE_LABELS__
         __NODE_SVG__
       </svg>
     </div>