[Test] Add nightly test for DeepSeek-V3.2-Exp (#3908)

### What this PR does / why we need it?
Add nightly test for DeepSeek-V3.2-Exp


### How was this patch tested?
test action：

https://github.com/vllm-project/vllm-ascend/actions/runs/19156153634/job/54757008557?pr=3908


- vLLM version: v0.11.0
- vLLM main:
83f478bb19

---------

Signed-off-by: hfadzxy <starmoon_zhang@163.com>

tests/e2e/nightly/multi_node/scripts/run.sh

@@ -107,6 +107,32 @@ install_ais_bench() {
     cd -
 }
 
+install_extra_components() {
+    echo "====> Installing extra components for DeepSeek-v3.2-exp-bf16"
+    
+    if ! wget -q https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/a3/CANN-custom_ops-sfa-linux.aarch64.run; then
+        echo "Failed to download CANN-custom_ops-sfa-linux.aarch64.run"
+        return 1
+    fi
+    chmod +x ./CANN-custom_ops-sfa-linux.aarch64.run
+    ./CANN-custom_ops-sfa-linux.aarch64.run --quiet
+    
+    if ! wget -q https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/a3/custom_ops-1.0-cp311-cp311-linux_aarch64.whl; then
+        echo "Failed to download custom_ops wheel"
+        return 1
+    fi
+    pip install custom_ops-1.0-cp311-cp311-linux_aarch64.whl
+    
+export ASCEND_CUSTOM_OPP_PATH=/usr/local/Ascend/ascend-toolkit/latest/opp/vendors/customize:${ASCEND_CUSTOM_OPP_PATH}
+export LD_LIBRARY_PATH=/usr/local/Ascend/ascend-toolkit/latest/opp/vendors/customize/op_api/lib/:${LD_LIBRARY_PATH}
+source /usr/local/Ascend/ascend-toolkit/set_env.sh
+EOF
+    
+    rm -f CANN-custom_ops-sfa-linux.aarch64.run \
+          custom_ops-1.0-cp311-cp311-linux_aarch64.whl
+    echo "====> Extra components installation completed"
+}
+
 kill_npu_processes() {
   pgrep python3 | xargs -r kill -9
   pgrep VLLM | xargs -r kill -9
@@ -140,6 +166,9 @@ main() {
     checkout_src
     install_sys_dependencies
     install_vllm
+    if [[ "$CONFIG_YAML_PATH" == *"DeepSeek-V3_2-Exp-bf16.yaml" ]]; then
+        install_extra_components
+    fi
     install_ais_bench
     cd "$WORKSPACE/source_code"
     . $SRC_DIR/vllm-ascend/tests/e2e/nightly/multi_node/scripts/build_mooncake.sh
@@ -147,4 +176,4 @@ main() {
     run_tests_with_log
 }
 
-main "$@"
+main "$@"