fix(sdk+launcher): 图标不渲染真根因(agent-219) — meow_ui_img.c scale_buf cover 采样把乘写成除(÷缩放比→采到源图左上角透明区,全丢); 改乘+居中裁剪偏移修正; 宿主旧测试用纯色图掩盖了该bug。+ main_menu App退出/结构变化重绘时 fb_pan_buf0_force 无条件pan回buffer0(防App翻页留buffer1致菜单残帧)

meow_ui.a→3e0ee8f7 launcher→9d0efc2f hello→9609ea6e files→90f5cf07 ncm→be8be221(均已上卡); 真机截图证据 .tmp/meowbug/fix1.png+fix_b2_after.png

patch_v2/ncm_app/bench/offline_track_all.c

@@ -0,0 +1,64 @@
+/* bench/offline_track_all.c — 二期大歌单分页 离线样本重放（不打网络）。
+ *
+ * 用与 App 完全相同的 core 解析函数 ncm_api_parse_track_all 解析一段合成的
+ * /api/playlist/track/all 响应（songs[] 全量对象含 al.picUrl + total）。纯解析，
+ * 验证：① 数组路径 songs 命中；② id >2^31 不溢出；③ 新字段 al.picUrl 解析。
+ * 风控纪律：验证期 0 次真实 NCM 请求（离线样本重放）。
+ * 编译(宿主)：$CC_HOST -O2 -DJSMN_HEADER -Icore -I../vendor/jsmn \
+ *      offline_track_all.c ../out/core-host/*.o \
+ *      -L../out/mbedtls/host -lmbedtls -lmbedx509 -lmbedcrypto -lz -lpthread -lm -o offline_track_all
+ */
+#include "ncm.h"
+#include <stdio.h>
+#include <string.h>
+
+static int g_fail = 0;
+#define CHECK(cond, fmt, ...) do { \
+    if (cond) printf("  PASS  " fmt "\n", ##__VA_ARGS__); \
+    else { printf("  FAIL  " fmt "\n", ##__VA_ARGS__); g_fail = 1; } \
+} while (0)
+
+int main(void) {
+    /* 合成真实形态 track/all 响应：songs[]（全 song 对象，含 al.picUrl）+ total。
+     * id 用 >2^31 数字（2746301825），验 int64 不溢出；al.picUrl 验专辑封面。 */
+    const char *json =
+        "{\"code\":200,\"songs\":["
+        "{\"id\":2746301825,\"name\":\"Chrono Rewind\",\"dt\":253000,\"fee\":1,"
+        " \"ar\":[{\"name\":\"CVRCH\"}],"
+        " \"al\":{\"name\":\"Rewrite\",\"picUrl\":\"http://p1.music.126.net/ab/cover1.jpg\"}},"
+        "{\"id\":2048962657,\"name\":\"Verve\",\"dt\":210000,\"fee\":0,"
+        " \"ar\":[{\"name\":\"Ryan Taubert\"}],"
+        " \"al\":{\"name\":\"Rebuild\",\"picUrl\":\"https://p2.music.126.net/cd/cover2.jpg\"}}"
+        "],\"total\":5191}";
+
+    ncm_song_t songs[8];
+    int n = 0;
+    int64_t total = 0;
+    int rc = ncm_api_parse_track_all(json, strlen(json), songs, 8, &n, &total);
+    CHECK(rc == NCM_OK, "parse_track_all rc=%d", rc);
+    CHECK(n == 2, "parsed 2 songs (n=%d)", n);
+    CHECK(total == 5191, "total=%lld", (long long)total);
+    CHECK(strcmp(songs[0].name, "Chrono Rewind") == 0, "song0 name='%s'", songs[0].name);
+    CHECK(strcmp(songs[0].art_name, "CVRCH") == 0, "song0 artist='%s'", songs[0].art_name);
+    CHECK(strcmp(songs[0].album_name, "Rewrite") == 0, "song0 album='%s'", songs[0].album_name);
+    CHECK(strcmp(songs[0].al_pic, "http://p1.music.126.net/ab/cover1.jpg") == 0,
+          "song0 al_pic='%s'", songs[0].al_pic);
+    CHECK(strcmp(songs[1].id, "2048962657") == 0, "song1 id='%s'(numeric->text)", songs[1].id);
+    CHECK(strcmp(songs[1].al_pic, "https://p2.music.126.net/cd/cover2.jpg") == 0,
+          "song1 al_pic='%s'", songs[1].al_pic);
+    CHECK(songs[0].duration_ms == 253000 && songs[0].fee == 1, "song0 dt=%ld fee=%d",
+          songs[0].duration_ms, songs[0].fee);
+
+    /* 数组路径容错：缺 songs 但嵌套 playlist.tracks 也应命中（防御真实端点变体）。 */
+    const char *json2 =
+        "{\"code\":200,\"playlist\":{\"trackCount\":3,\"tracks\":["
+        "{\"id\":1,\"name\":\"A\",\"dt\":1000,\"fee\":0,\"ar\":[{\"name\":\"X\"}],"
+        "\"al\":{\"name\":\"AL\",\"picUrl\":\"http://x/y.jpg\"}}]}}";
+    int n2 = 0; int64_t t2 = 0;
+    rc = ncm_api_parse_track_all(json2, strlen(json2), songs, 8, &n2, &t2);
+    CHECK(rc == NCM_OK && n2 == 1, "parse variant playlist.tracks rc=%d n=%d", rc, n2);
+    CHECK(t2 == 3, "variant total(trackCount)=%lld", (long long)t2);
+
+    printf("%s\n", g_fail ? "RESULT: FAIL" : "RESULT: PASS");
+    return g_fail ? 1 : 0;
+}