fix(ncm): 歌单详情LoadFailed——track/all端点不存在(404)回退detail+分批song_detail已验证链路; 列表误触改按下锁定行+拖动抑制 (agent-227, 真机验证256首出曲) + perf(meowpanel): 屏幕帧整数定点DCT(无FPU软浮点3.96s→0.19s/帧,实测4-5fps)+前端链式轮询防堆积+实测fps显示 (agent-228)

ncm→73422166 已部署; meowpanel→f310a00e 已部署

patch_v2/ncm_app/bench/probe_track_all.c

@@ -0,0 +1,82 @@
+/* probe_track_all.c — 真机抓 /api/playlist/track/all 原始响应 + 用现有解析器解析。
+ * 目的：确认「Load Failed」根因（eapi 路由 / 响应字段 / code 非 200 / 数组路径）。
+ * 请求量：1（track/all for 一个小歌单）。
+ * 用法: probe_track_all <data_dir> <cacert> <playlist_id> <out_path> [path] [crypto]
+ *   data_dir 默认 /usr/data/mnt/sd_0/MeowData/dev.player.ncm/data
+ *   cacert   默认 /usr/data/mnt/sd_0/MeowAPPs/dev.player.ncm/cacert.pem
+ *   playlist_id 默认 18206253175（Docu/1 首）
+ *   out_path 默认 /tmp/track_all_raw.json
+ *   path  默认 /api/playlist/track/all（eapi 已证 404，可改 /api/v6/playlist/track/all）
+ *   crypto 0=eapi(默认) 1=weapi
+ */
+#include "ncm.h"
+#include "ncm_api.h"
+#include "ncm_common.h"
+#include "ncm_http.h"
+#include "ncm_req.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+static ncm_ctx_t ncm_ctx;
+
+int main(int argc, char **argv)
+{
+    const char *data_dir = argc > 1 ? argv[1] : "/usr/data/mnt/sd_0/MeowData/dev.player.ncm/data";
+    const char *cacert   = argc > 2 ? argv[2] : "/usr/data/mnt/sd_0/MeowAPPs/dev.player.ncm/cacert.pem";
+    const char *pid      = argc > 3 ? argv[3] : "18206253175";
+    const char *out_path = argc > 4 ? argv[4] : "/tmp/track_all_raw.json";
+    const char *path     = argc > 5 ? argv[5] : "/api/playlist/track/all";
+    int         crypto_kind = (argc > 6 && atoi(argv[6]) == 1) ? NCM_CRYPT_WEAPI : NCM_CRYPT_EAPI;
+
+    ncm_ctx_init(&ncm_ctx, data_dir);
+    printf("device_id=%s cookie_len=%zu\n", ncm_ctx.device_id, strlen(ncm_ctx.cookie));
+    ncm_http_set_verify_default(1, cacert);
+
+    /* 直接构造 track/all 请求，抓原始 body（不经过解析，避免解析失败掩盖真相）。 */
+    printf("testing path=%s crypto=%s\n", path, crypto_kind == NCM_CRYPT_EAPI ? "eapi" : "weapi");
+    char json[256];
+    snprintf(json, sizeof json, "{\"id\":\"%s\",\"offset\":0,\"limit\":50,\"n\":50,\"s\":8}", pid);
+    char body[NCM_REQ_BODY_MAX], hdrs[NCM_REQ_HDRS_MAX], url[NCM_REQ_URL_MAX];
+    int rc = ncm_req_build(ncm_ctx.device_id, ncm_ctx.cookie, path, json,
+                           crypto_kind, body, sizeof body, hdrs, sizeof hdrs, url, sizeof url);
+    printf("req_build rc=%d url=%s\n", rc, url);
+    if (rc != NCM_OK) return 1;
+
+    ncm_http_req_t req;
+    memset(&req, 0, sizeof req);
+    req.url = url; req.method = "POST"; req.body = body; req.body_len = strlen(body);
+    req.extra_hdrs = hdrs; req.verify_ca = NCM_HTTP_VERIFY_DEFAULT; req.timeout_ms = 15000;
+
+    char rbuf[2 * 1024 * 1024];
+    ncm_http_resp_t resp;
+    memset(&resp, 0, sizeof resp);
+    long t0 = (long)ncm_now_ms();
+    rc = ncm_http_request(&req, rbuf, sizeof rbuf, &resp);
+    long dt = (long)ncm_now_ms() - t0;
+    printf("http rc=%d status=%d content_length=%zu body_len=%zu elapsed_ms=%ld\n",
+           rc, resp.status, resp.content_length, resp.body_len, dt);
+    if (rc != NCM_OK) return 1;
+
+    /* 原样落盘（截断到 body_len） */
+    FILE *fp = fopen(out_path, "wb");
+    if (fp) { fwrite(resp.body, 1, resp.body_len, fp); fclose(fp); printf("raw saved to %s (%zu bytes)\n", out_path, resp.body_len); }
+    else printf("cannot write %s\n", out_path);
+
+    /* 打印前 1500 字节便于目检 */
+    size_t show = resp.body_len < 1500 ? resp.body_len : 1500;
+    printf("--- first %zu bytes ---\n", show);
+    fwrite(resp.body, 1, show, stdout);
+    printf("\n--- end ---\n");
+
+    /* 用现有解析器（离线重放，无新请求） */
+    if (resp.body_len > 0) {
+        ncm_song_t songs[50]; int out_n = 0; int64_t total = 0;
+        rc = ncm_api_parse_track_all(resp.body, resp.body_len, songs, 50, &out_n, &total);
+        printf("parse rc=%d out_n=%d total=%lld\n", rc, out_n, (long long)total);
+        if (rc == NCM_OK && out_n > 0)
+            printf("  [0] %s / %s / %s\n", songs[0].name, songs[0].art_name, songs[0].album_name);
+    }
+    printf("PROBE DONE\n");
+    return 0;
+}