feat: add Feishu cloud drive share parsing support (FS)

- Add FsTool.java parser implementation for Feishu cloud drive
- Add FS entry to PanDomainTemplate with regex for file/folder URLs
- Add feishu-dl.py Python reference implementation
- Add FsToolTest.java with 8 test cases for regex and parser flow
- Update README.md to include Feishu in supported disk list

Agent-Logs-Url: https://github.com/qaiu/netdisk-fast-download/sessions/10b5c877-4690-4e35-aab8-bfd26a0810d1

Co-authored-by: qaiu <29825328+qaiu@users.noreply.github.com>

parser/src/main/java/cn/qaiu/parser/PanDomainTemplate.java

@@ -312,6 +312,13 @@ public enum PanDomainTemplate {
             compile("https://pan\\.quark\\.cn/s/(?<KEY>\\w+)([&#].*)?"),
             "https://pan.quark.cn/s/{shareKey}",
             QkTool.class),
+    // https://kcncuknojm60.feishu.cn/file/VnCxbt35KoowKoxldO3c3C7VnMc?from=from_copylink
+    // https://kcncuknojm60.feishu.cn/drive/folder/RQSKf8EQ4l7dMedqzHucpMbancg?from=from_copylink
+    FS("飞书云盘",
+            compile("https://[a-zA-Z\\d]+\\.feishu\\.cn/(file|drive/folder)/(?<KEY>[a-zA-Z\\d_-]+)(\\?.*)?"),
+            "https://feishu.cn/file/{shareKey}",
+            "https://www.feishu.cn/",
+            FsTool.class),
 
     // =====================音乐类解析 分享链接标志->MxxS (单歌曲/普通音质)==========================
     // http://163cn.tv/xxx

parser/src/main/java/cn/qaiu/parser/impl/FsTool.java

@@ -0,0 +1,100 @@
+package cn.qaiu.parser.impl;
+
+import cn.qaiu.entity.ShareLinkInfo;
+import cn.qaiu.parser.PanBase;
+import io.vertx.core.Future;
+import io.vertx.core.json.JsonObject;
+
+import java.net.URL;
+
+/**
+ * <a href="https://www.feishu.cn/">飞书云盘(fs)</a>
+ * 分享格式：
+ * <ul>
+ *   <li>文件: https://xxx.feishu.cn/file/TOKEN?from=from_copylink</li>
+ *   <li>文件夹: https://xxx.feishu.cn/drive/folder/TOKEN?from=from_copylink</li>
+ * </ul>
+ * ?from=from_copylink 是可选参数，没有分享密码
+ */
+public class FsTool extends PanBase {
+
+    private static final String DOWNLOAD_API_PATH = "/space/api/box/stream/download/all/";
+    private static final String UA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " +
+            "(KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36";
+
+    public FsTool(ShareLinkInfo shareLinkInfo) {
+        super(shareLinkInfo);
+    }
+
+    @Override
+    public Future<String> parse() {
+        String shareUrl = shareLinkInfo.getShareUrl();
+        try {
+            // 去除查询参数以获取干净的URL
+            String cleanUrl = shareUrl.contains("?") ? shareUrl.substring(0, shareUrl.indexOf("?")) : shareUrl;
+            URL url = new URL(cleanUrl);
+            String host = url.getHost();
+            String path = url.getPath();
+            String token = shareLinkInfo.getShareKey();
+
+            if (path.contains("/file/")) {
+                // 文件分享 - 获取下载直链
+                getDownloadUrl(host, token);
+            } else if (path.contains("/drive/folder/")) {
+                fail("飞书文件夹分享暂不支持直接下载，请使用文件分享链接");
+            } else {
+                fail("不支持的飞书链接格式: {}", path);
+            }
+        } catch (Exception e) {
+            fail(e, "解析飞书分享链接失败");
+        }
+        return promise.future();
+    }
+
+    /**
+     * 通过飞书下载API获取文件直链
+     *
+     * @param host  飞书域名 (如 kcncuknojm60.feishu.cn)
+     * @param token 文件token
+     */
+    private void getDownloadUrl(String host, String token) {
+        String downloadApiUrl = "https://" + host + DOWNLOAD_API_PATH + token + "?mount_point=explorer";
+
+        clientNoRedirects.getAbs(downloadApiUrl)
+                .putHeader("User-Agent", UA)
+                .putHeader("Referer", "https://" + host + "/")
+                .send()
+                .onSuccess(res -> {
+                    int statusCode = res.statusCode();
+                    if (statusCode == 302 || statusCode == 301) {
+                        String location = res.getHeader("Location");
+                        if (location != null && !location.isEmpty()) {
+                            log.info("飞书文件解析成功: token={}", token);
+                            complete(location);
+                        } else {
+                            fail("飞书下载API返回{}但没有Location头", statusCode);
+                        }
+                    } else if (statusCode == 200) {
+                        // 部分情况下API返回JSON格式的下载链接
+                        try {
+                            JsonObject json = asJson(res);
+                            if (json.containsKey("code") && json.getInteger("code") == 0) {
+                                String downloadUrl = json.getString("url");
+                                if (downloadUrl != null && !downloadUrl.isEmpty()) {
+                                    log.info("飞书文件解析成功(JSON): token={}", token);
+                                    complete(downloadUrl);
+                                    return;
+                                }
+                            }
+                        } catch (Exception ignored) {
+                        }
+                        // 如果返回200且不是JSON，则API地址本身可能就是下载地址
+                        complete(downloadApiUrl);
+                    } else {
+                        fail("飞书下载API返回非预期状态码: {}, body: {}", statusCode,
+                                res.bodyAsString());
+                    }
+                })
+                .onFailure(handleFail("请求飞书下载API"));
+    }
+}