feat(ncm §20): 音质体系全量——八档UI/VIP检测缓存/逐级降级下首恢复/fee门禁/默认极高HQ

- core: 9档枚举(顺序=降级链, DOLBY映射保留不进UI/链) + level_key(sky/sky_c51)
  + level_gate(CVIP/SVIP门槛) + song_url surround档附加immerseType=c51
  + song_url_auto全档表降级(out_level回填/响应level静默降档采信/try_fn可注入)
  + vip_info(weapi v2优先v1兜底) + parse_vip_info离线可测 + NCM_ERR_VIP(-15)
- app/logic/account.c(新): account.json会员态缓存(uid/nick/vip/双expire/checked_at)
  刷新=登录后/超1天/到期后各一次不轮询; account_vip本地到期降档视图
- player_manager: 用户档按会员钳顶后逐级降级(不硬拒,缓存键仍用户档),
  fee∈{1,4}且非会员→NCM_ERR_VIP零请求(缓存命中优先), eff_level回填
- UI: 设置页八档(规格+门槛+未解锁标注,允许选定), 播放页时间行中央
  生效档/已降级至xx小字, VIP专享文案; 默认档Hi-Res→极高HQ(存量设置保留)
- 验证(0真实请求): degrade_sim 90例矩阵全PASS; player_flow_sim P1-P8全PASS;
  test_ncm_core vip解析9例宿主+qemu全PASS; 窗口/分页/缓存/封面/audiod sim全PASS;
  mipsel -Wall -Wextra 0 warning; 6页离屏rc=0。未部署真机(留主会话)

patch_v2/ncm_app/test/test_ncm_core.c

@@ -267,6 +267,85 @@ static void test_track_all_parse(void) {
     CHECK(songs[0].duration_ms == 253000 && songs[0].fee == 1, "song0 dt/fee");
 }
 
+static void test_vip_parse(void) {
+    printf("== vip/info 离线解析 + 档位表（§20）==\n");
+    int64_t now = 1700000000000LL;   /* 固定参考时刻（ms） */
+    ncm_vip_info_t v;
+
+    /* 1) v2 形态（data 子对象）：associator.vipCode>0 + 未到期 → SVIP */
+    const char *j1 =
+        "{\"code\":200,\"data\":{\"associator\":{\"vipCode\":100,\"isSign\":true,"
+        "\"expireTime\":1700000100000},\"musicPackage\":{\"vipCode\":0,\"expireTime\":0},"
+        "\"redVipLevel\":0}}";
+    CHECK(ncm_api_parse_vip_info(j1, strlen(j1), now, &v) == NCM_OK &&
+          v.vip == NCM_VIP_SVIP && v.svip_expire_ms == 1700000100000LL,
+          "v2 associator -> SVIP (vip=%d exp=%lld)", v.vip, (long long)v.svip_expire_ms);
+
+    /* 2) 音乐包（musicPackage.vipCode>0），无 associator → CVIP */
+    const char *j2 =
+        "{\"code\":200,\"data\":{\"musicPackage\":{\"vipCode\":220,\"isSign\":false,"
+        "\"expireTime\":1700000200000},\"redVipLevel\":0}}";
+    CHECK(ncm_api_parse_vip_info(j2, strlen(j2), now, &v) == NCM_OK &&
+          v.vip == NCM_VIP_CVIP && v.cvip_expire_ms == 1700000200000LL,
+          "v2 musicPackage -> CVIP (vip=%d)", v.vip);
+
+    /* 3) 全零 → NONE */
+    const char *j3 =
+        "{\"code\":200,\"data\":{\"associator\":{\"vipCode\":0,\"expireTime\":0},"
+        "\"musicPackage\":{\"vipCode\":0},\"redVipLevel\":0,\"redplusLevel\":0}}";
+    CHECK(ncm_api_parse_vip_info(j3, strlen(j3), now, &v) == NCM_OK && v.vip == NCM_VIP_NONE,
+          "all-zero -> NONE (vip=%d)", v.vip);
+
+    /* 4) 到期时间已过且 vipCode=0 → NONE（不复活） */
+    const char *j4 =
+        "{\"code\":200,\"data\":{\"associator\":{\"vipCode\":0,\"isSign\":false,"
+        "\"expireTime\":1699999900000}}}";
+    CHECK(ncm_api_parse_vip_info(j4, strlen(j4), now, &v) == NCM_OK && v.vip == NCM_VIP_NONE,
+          "expired associator -> NONE (vip=%d)", v.vip);
+
+    /* 5) 仅 expireTime > now（vipCode=0/isSign=false）→ 仍判 SVIP（BIZ_NOTES §1.2 字段判据） */
+    const char *j5 =
+        "{\"code\":200,\"data\":{\"associator\":{\"vipCode\":0,\"isSign\":false,"
+        "\"expireTime\":1700000300000}}}";
+    CHECK(ncm_api_parse_vip_info(j5, strlen(j5), now, &v) == NCM_OK && v.vip == NCM_VIP_SVIP,
+          "expireTime>now alone -> SVIP (vip=%d)", v.vip);
+
+    /* 6) v1 兜底形态（字段直接在根部）：vipStatus=true → CVIP */
+    const char *j6 = "{\"code\":200,\"vipStatus\":true,\"redVipLevel\":0}";
+    CHECK(ncm_api_parse_vip_info(j6, strlen(j6), now, &v) == NCM_OK && v.vip == NCM_VIP_CVIP,
+          "v1 flat root vipStatus -> CVIP (vip=%d)", v.vip);
+
+    /* 7) 顶层红胶等级 redVipLevel>0 → CVIP */
+    const char *j7 = "{\"code\":200,\"data\":{\"redVipLevel\":5}}";
+    CHECK(ncm_api_parse_vip_info(j7, strlen(j7), now, &v) == NCM_OK && v.vip == NCM_VIP_CVIP,
+          "redVipLevel>0 -> CVIP (vip=%d)", v.vip);
+
+    /* 8) code != 200 → 错误（不判档） */
+    const char *j8 = "{\"code\":301,\"msg\":\"需要登录\"}";
+    CHECK(ncm_api_parse_vip_info(j8, strlen(j8), now, &v) == NCM_ERR_AUTH,
+          "code=301 -> AUTH err");
+
+    /* 9) 档位表：level 串 / 缓存键 / 门槛 */
+    CHECK(strcmp(ncm_api_level_str(NCM_LEVEL_SURROUND), "sky") == 0 &&
+          strcmp(ncm_api_level_str(NCM_LEVEL_SKY), "sky") == 0,
+          "SURROUND/SKY api str both 'sky'");
+    CHECK(strcmp(ncm_api_level_key(NCM_LEVEL_SURROUND), "sky_c51") == 0 &&
+          strcmp(ncm_api_level_key(NCM_LEVEL_SKY), "sky") == 0,
+          "cache keys unique: sky_c51 vs sky");
+    CHECK(strcmp(ncm_api_level_str(NCM_LEVEL_JYEFFECT), "jyeffect") == 0 &&
+          strcmp(ncm_api_level_str(NCM_LEVEL_JYMASTER), "jymaster") == 0 &&
+          strcmp(ncm_api_level_str(NCM_LEVEL_DOLBY), "dolby") == 0,
+          "jyeffect/jymaster/dolby str (BIZ_NOTES §2.1)");
+    CHECK(ncm_api_level_gate(NCM_LEVEL_STANDARD) == NCM_VIP_NONE &&
+          ncm_api_level_gate(NCM_LEVEL_EXHIGH) == NCM_VIP_NONE &&
+          ncm_api_level_gate(NCM_LEVEL_LOSSLESS) == NCM_VIP_CVIP &&
+          ncm_api_level_gate(NCM_LEVEL_HIRES) == NCM_VIP_CVIP &&
+          ncm_api_level_gate(NCM_LEVEL_JYEFFECT) == NCM_VIP_SVIP &&
+          ncm_api_level_gate(NCM_LEVEL_SURROUND) == NCM_VIP_SVIP &&
+          ncm_api_level_gate(NCM_LEVEL_DOLBY) == NCM_VIP_SVIP,
+          "level gates: free/CVIP/SVIP");
+}
+
 int main(int argc, char **argv) {
     const char *data_dir = (argc > 1) ? argv[1] : "/tmp/ncm_test";
     printf("ncm_core self-test, data_dir=%s\n", data_dir);
@@ -282,6 +361,7 @@ int main(int argc, char **argv) {
     test_qr();
     test_network();
     test_track_all_parse();
+    test_vip_parse();
 
     printf("\n%s\n", g_fail ? "== RESULT: FAIL ==" : "== RESULT: PASS ==");
     return g_fail ? 1 : 0;