refactor(CompactSearchBox): 提取常量和工具函数到子模块

- constants.js: SORT_OPTIONS, IMPORTANCE_OPTIONS 选项配置
- utils.js: findIndustryPath, inferTimeRangeFromFilters, buildFilterParams
- index.js: 模块统一导出

主文件逻辑更清晰，工具函数可复用

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/views/Community/components/SearchFilters/CompactSearchBox/constants.js

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+// CompactSearchBox 常量定义
+
+// 排序选项常量
+export const SORT_OPTIONS = [
+  { value: "new", label: "最新排序", mobileLabel: "最新" },
+  { value: "hot", label: "最热排序", mobileLabel: "热门" },
+  { value: "importance", label: "重要性排序", mobileLabel: "重要" },
+  { value: "returns_avg", label: "平均收益", mobileLabel: "均收" },
+  { value: "returns_week", label: "周收益", mobileLabel: "周收" },
+];
+
+// 重要性等级常量
+export const IMPORTANCE_OPTIONS = [
+  { value: "S", label: "S级" },
+  { value: "A", label: "A级" },
+  { value: "B", label: "B级" },
+  { value: "C", label: "C级" },
+];

src/views/Community/components/SearchFilters/CompactSearchBox/index.js

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+// CompactSearchBox 模块导出
+
+export { SORT_OPTIONS, IMPORTANCE_OPTIONS } from "./constants";
+export { findIndustryPath, inferTimeRangeFromFilters, buildFilterParams } from "./utils";

src/views/Community/components/SearchFilters/CompactSearchBox/utils.js

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+// CompactSearchBox 工具函数
+
+import dayjs from "dayjs";
+
+/**
+ * 在行业树中查找指定代码的完整路径
+ * @param {string} targetCode - 目标行业代码
+ * @param {Array} data - 行业数据树
+ * @param {Array} currentPath - 当前路径（递归用）
+ * @returns {Array|null} - 找到的完整路径，未找到返回 null
+ */
+export const findIndustryPath = (targetCode, data, currentPath = []) => {
+  if (!data || data.length === 0) return null;
+
+  for (const item of data) {
+    const newPath = [...currentPath, item.value];
+
+    if (item.value === targetCode) {
+      return newPath;
+    }
+
+    if (item.children && item.children.length > 0) {
+      const found = findIndustryPath(targetCode, item.children, newPath);
+      if (found) return found;
+    }
+  }
+  return null;
+};
+
+/**
+ * 从 filters 中推断时间范围配置
+ * @param {Object} filters - 筛选条件
+ * @returns {Object|null} - 时间范围配置
+ */
+export const inferTimeRangeFromFilters = (filters) => {
+  if (!filters) return null;
+
+  const hasTimeInFilters =
+    filters.start_date ||
+    filters.end_date ||
+    filters.recent_days ||
+    filters.time_filter_key;
+
+  if (!hasTimeInFilters) return null;
+
+  let inferredKey = filters.time_filter_key || "custom";
+  let inferredLabel = "";
+
+  if (filters.time_filter_key === "current-trading-day") {
+    inferredKey = "current-trading-day";
+    inferredLabel = "当前交易日";
+  } else if (filters.time_filter_key === "all") {
+    inferredKey = "all";
+    inferredLabel = "全部";
+  } else if (filters.recent_days) {
+    if (filters.recent_days === "7") {
+      inferredKey = "week";
+      inferredLabel = "近一周";
+    } else if (filters.recent_days === "30") {
+      inferredKey = "month";
+      inferredLabel = "近一月";
+    } else {
+      inferredLabel = `近${filters.recent_days}天`;
+    }
+  } else if (filters.start_date && filters.end_date) {
+    inferredLabel = `${dayjs(filters.start_date).format("MM-DD HH:mm")} - ${dayjs(filters.end_date).format("MM-DD HH:mm")}`;
+  }
+
+  return {
+    start_date: filters.start_date || "",
+    end_date: filters.end_date || "",
+    recent_days: filters.recent_days || "",
+    label: inferredLabel,
+    key: inferredKey,
+  };
+};
+
+/**
+ * 构建筛选参数
+ * @param {Object} options - 配置选项
+ * @returns {Object} - 构建的参数对象
+ */
+export const buildFilterParams = ({
+  overrides = {},
+  sort,
+  importance,
+  filtersQ,
+  industryValue,
+  tradingTimeRange,
+  mode,
+  pageSize,
+}) => {
+  const sortValue = overrides.sort ?? sort;
+  let actualSort = sortValue;
+  let returnType;
+
+  if (sortValue === "returns_avg") {
+    actualSort = "returns";
+    returnType = "avg";
+  } else if (sortValue === "returns_week") {
+    actualSort = "returns";
+    returnType = "week";
+  }
+
+  let importanceValue = overrides.importance ?? importance;
+  if (Array.isArray(importanceValue)) {
+    importanceValue =
+      importanceValue.length === 0 ? "all" : importanceValue.join(",");
+  }
+
+  const result = {
+    ...overrides,
+    sort: actualSort,
+    _sortDisplay: sortValue,
+    importance: importanceValue,
+    q: overrides.q ?? filtersQ ?? "",
+    industry_code: overrides.industry_code ?? (industryValue?.join(",") || ""),
+    start_date: overrides.start_date ?? (tradingTimeRange?.start_date || ""),
+    end_date: overrides.end_date ?? (tradingTimeRange?.end_date || ""),
+    recent_days: overrides.recent_days ?? (tradingTimeRange?.recent_days || ""),
+    page: 1,
+  };
+
+  delete result.per_page;
+
+  if (returnType) {
+    result.return_type = returnType;
+  } else {
+    delete result.return_type;
+  }
+
+  if (mode !== undefined && mode !== null) {
+    result.mode = mode;
+  }
+  if (pageSize !== undefined && pageSize !== null) {
+    result.per_page = pageSize;
+  }
+
+  return result;
+};