Reuse validated FlashInfer cache for TP2 smoke

runs/frontier-tp2-prefill-serving-v0/experiment-card.md

@@ -71,6 +71,12 @@
 - **Fleet sync deviation：** dash1 未安装 `rsync`。fleet mandatory sync 使用
   `scp` 一个已校验为空的 `/tmp/frontier-tp2-prefill-serving-v0-empty-sync`
   目录；实验代码仍只来自上述 Git worktree。
+- **FlashInfer cache deviation：** v0 使用空 workspace 冷构建
+  `fused_moe_90`，约 8 分钟仅完成 4/181 objects，且尚未发请求，因此主动
+  终止（exit 141）。v1 改用此前 component profile 在同一 dash1、同一
+  FlashInfer `0.6.8.post1/sm90a` 构建的
+  `/tmp/frontier-component-flashinfer-v4`；仍保留 2 次 profiler-off serving
+  warmup，所有计时发生在 warmup 后。
 
 ## 结果
 

runs/frontier-tp2-prefill-serving-v0/jobs-smoke.toml

@@ -1,16 +1,16 @@
 version = 1
 
 [[jobs]]
-name = "tp2-prefill-serving-smoke-20260723-v0"
+name = "tp2-prefill-serving-smoke-20260723-v1"
 gpus = 2
 gpu_model = "H20"
 hosts = ["dash1"]
 command = "timeout --signal=TERM --kill-after=60s 3600 bash runs/frontier-tp2-prefill-serving-v0/run_prefill_profile.sh"
-artifacts = ["runs/frontier-tp2-prefill-serving-v0/remote-outputs/tp2-smoke"]
+artifacts = ["runs/frontier-tp2-prefill-serving-v0/remote-outputs/tp2-smoke-r1"]
 
 [jobs.env]
 TP = "2"
 SERVER_PORT = "9827"
-OUTPUT_ROOT = "runs/frontier-tp2-prefill-serving-v0/remote-outputs/tp2-smoke"
+OUTPUT_ROOT = "runs/frontier-tp2-prefill-serving-v0/remote-outputs/tp2-smoke-r1"
 WARMUP_REQUESTS = "2"
-FLASHINFER_WORKSPACE_BASE = "/tmp/frontier-tp2-prefill-serving-v0-flashinfer"
+FLASHINFER_WORKSPACE_BASE = "/tmp/frontier-component-flashinfer-v4"