app+csdk+docs: 噪声预算真机实测（0.559σn 与理论一致，链路无额外噪声源）+ 修 MDT raw/NUC 配对与 LUT 32位语义；csdk 合入 android_lut/fpa_temp_fix（C 未编译，算法由 golden 测试锁定）；118 单测全绿

csdk/tools/mag160c_demo3.c

@@ -611,7 +611,13 @@ int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmd, int show) {
        structurally different function (fixed base, step cap, mean-of-partials pivot)
        that is ported in the Android pipeline, not here.  See
        docs/android_app/rendering_diff_phone_20261006.md section 10. */
-    cfg.cdf_pivot_75 = 1;
+    /* Android libcxsdk parity (validated on device 2026-10-06, see
+       docs/android_app/rendering_diff_phone_20261006.md sections 10-11):
+       the phone app renders with its own HistDeRedundance variant, and it feeds the
+       per-pixel table interpolation (frame-tail FPA + BasePara2.fpaTempFix). */
+    cfg.cdf_pivot_75 = 1;      /* kept for the PC path */
+    cfg.android_lut = 1;
+    cfg.fpa_temp_fix = 1699;   /* BasePara2.fpaTempFix of device 160043865 */
     cfg.ffc_cb = ffc_cb;
     cfg.post_nuc_cb = post_nuc_cb;
     cfg.post_gray_cb = post_gray_cb;

csdk/tools/mag160c_linux_demo.c

@@ -127,7 +127,13 @@ int main(int argc, char **argv) {
     cfg.warm_frames = 20;
     /* PC/Linux reference LUT keeps its own pivot (see the same note in
        mag160c_demo3.c); the Android-parity LUT lives in the Android pipeline. */
-    cfg.cdf_pivot_75 = 1;
+    /* Android libcxsdk parity (validated on device 2026-10-06, see
+       docs/android_app/rendering_diff_phone_20261006.md sections 10-11):
+       the phone app renders with its own HistDeRedundance variant, and it feeds the
+       per-pixel table interpolation (frame-tail FPA + BasePara2.fpaTempFix). */
+    cfg.cdf_pivot_75 = 1;      /* kept for the PC path */
+    cfg.android_lut = 1;
+    cfg.fpa_temp_fix = 1699;   /* BasePara2.fpaTempFix of device 160043865 */
     cfg.ffc_cb = ffc_cb;
     mag160c_render_t *render = NULL;
     if (mag160c_render_init(&render, &cfg) != MAG160C_OK) {