Rewrite perf tracer with new data model

PiperOrigin-RevId: 834051083

Author: jiangyangmu

tests/perf/trace_test.py

@@ -31,9 +31,8 @@
 from tunix.generate.sampler import Sampler
 from tunix.generate.tokenizer_adapter import TokenizerAdapter, Tokenizer
 from tunix.perf.export import PerfMetricsExport
-from tunix.perf.metrics import PerfMetricsApi
 from tunix.perf.metrics import PerfMetricsConfig
-from tunix.perf.metrics import PerfMetricsQuery
+from tunix.perf.metrics import PerfSpanQuery
 from tunix.rl.grpo.grpo_learner import GRPOConfig
 from tunix.rl.grpo.grpo_learner import GrpoConfig
 from tunix.rl.grpo.grpo_learner import GRPOLearner