feat: 审核流程完善 + 共享状态提示 + 贡献统计含拒绝

审核流程:
- 高级编辑者可看到待审核配方，点击推荐通过→通知管理员
- 高级编辑者可直接拒绝（和管理员相同逻辑）
- 管理员收到推荐通知后最终决定
- 去审核通知点击自动展开待审核列表
- 新增 /api/recipes/{id}/recommend 端点

共享:
- 已共享配方再点共享→提示"已共享，感谢贡献"
- 审核中配方再点共享→提示"正在审核中，请耐心等待"

贡献统计:
- 被拒绝的配方也计入总申请数（0/1不会变回0/0）
- reject_recipe日志记录from_user

其他:
- 配方卡片去掉编辑按钮

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/main.py

@@ -895,7 +895,7 @@ def adopt_recipe(recipe_id: int, user=Depends(require_role("admin"))):
 
 
 @app.post("/api/recipes/{recipe_id}/reject")
-def reject_recipe(recipe_id: int, body: dict = None, user=Depends(require_role("admin"))):
+def reject_recipe(recipe_id: int, body: dict = None, user=Depends(require_role("admin", "senior_editor"))):
     conn = get_db()
     row = conn.execute("SELECT id, name, owner_id FROM recipes WHERE id = ?", (recipe_id,)).fetchone()
     if not row:
@@ -917,8 +917,30 @@ def reject_recipe(recipe_id: int, body: dict = None, user=Depends(require_role("
     conn.execute("DELETE FROM recipe_ingredients WHERE recipe_id = ?", (recipe_id,))
     conn.execute("DELETE FROM recipe_tags WHERE recipe_id = ?", (recipe_id,))
     conn.execute("DELETE FROM recipes WHERE id = ?", (recipe_id,))
+    from_name = (old_owner["display_name"] or old_owner["username"]) if old_owner else "unknown"
     log_audit(conn, user["id"], "reject_recipe", "recipe", recipe_id, row["name"],
-              json.dumps({"reason": reason}))
+              json.dumps({"reason": reason, "from_user": from_name}))
+    conn.commit()
+    conn.close()
+    return {"ok": True}
+
+
+@app.post("/api/recipes/{recipe_id}/recommend")
+def recommend_recipe(recipe_id: int, body: dict = None, user=Depends(get_current_user)):
+    """Senior editor recommends a recipe for admin approval."""
+    if user["role"] not in ("senior_editor", "admin"):
+        raise HTTPException(403, "权限不足")
+    conn = get_db()
+    recipe = conn.execute("SELECT name, owner_id FROM recipes WHERE id = ?", (recipe_id,)).fetchone()
+    if not recipe:
+        conn.close()
+        raise HTTPException(404, "配方不存在")
+    who = user.get("display_name") or user.get("username")
+    conn.execute(
+        "INSERT INTO notifications (target_role, title, body) VALUES (?, ?, ?)",
+        ("admin", "👍 配方推荐通过",
+         f"{who} 审核了配方「{recipe['name']}」并推荐通过，请最终确认。\n[recipe_id:{recipe_id}]")
+    )
     conn.commit()
     conn.close()
     return {"ok": True}
@@ -1511,10 +1533,16 @@ def my_contribution(user=Depends(get_current_user)):
         "SELECT name FROM recipes WHERE owner_id = ?", (user["id"],)
     ).fetchall()
     pending_names = [r["name"] for r in pending_rows]
+    # rejected: count recipes rejected from this user (they were deleted but logged)
+    rejected_count = conn.execute(
+        "SELECT COUNT(*) FROM audit_log WHERE action = 'reject_recipe' AND detail LIKE ?",
+        (f'%"from_user": "{display}"%',)
+    ).fetchone()[0]
     conn.close()
+    total = len(adopted_names) + len(pending_names) + rejected_count
     return {
         "adopted_count": len(adopted_names),
-        "shared_count": len(adopted_names) + len(pending_names),
+        "shared_count": total,
         "adopted_names": adopted_names,
         "pending_names": pending_names,
     }