fix: INVALID_WORKLOAD 只跳过当前shape而不中止所有配置

原来 ADAPTIVE_FATAL_WORKLOAD=1 会设 abort_all=1,导致所有剩余TP/DP配置
全部被跳过。改为 continue 只跳过当前 shape,让后续 shape 和配置正常
继续执行。

这修复了 TP=8/DP=2 在 isl=4096 osl=128 因 KV cache 不足导致 workload
验证失败后,TP=16/DP=1 被跳过的 bug。

scripts/common/adaptive_bench_lib.sh

@@ -945,9 +945,9 @@ PY
       adaptive_run_shape "$tp" "$dp" "$mark" "$isl" "$osl" "$config_root"
 
       if (( ADAPTIVE_FATAL_WORKLOAD == 1 )); then
-        log "ERROR: invalid synthetic workload; aborting remaining searches"
-        abort_all=1
-        break
+        log "WARNING: invalid workload for tp=${tp} dp=${dp} isl=${isl} osl=${osl}; skipping shape, continuing next"
+        ADAPTIVE_FATAL_WORKLOAD=0
+        continue
       fi
       if (( ADAPTIVE_SKIP_CONFIG == 1 )); then
         log "config skip requested; reason=${ADAPTIVE_SKIP_CONFIG_REASON:-unknown}; skipping remaining shapes for tp=${tp} dp=${dp}"