feat: ScenarioInfo exposes metric_weights and doc_weights from YAML

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

webapp/models.py

@@ -74,6 +74,18 @@ class ReportData(BaseModel):
     lowest_samples: list[SampleScore] = Field(default_factory=list)
     summary_markdown: str = ""
     advice_markdown: str = ""  # optimization_advice.md content (empty if not generated)
+    weighted_score_mean: float | None = Field(
+        default=None,
+        description="加权综合得分均值（metric_weights × doc_weights 共同作用）。",
+    )
+    metric_weights: dict[str, float] = Field(
+        default_factory=dict,
+        description="该次运行使用的指标权重配置（来自 scenario.snapshot.yaml）。",
+    )
+    doc_weights: dict[str, float] = Field(
+        default_factory=dict,
+        description="该次运行使用的文档权重配置（来自 scenario.snapshot.yaml）。",
+    )
 
 
 class RunDetail(BaseModel):
@@ -93,6 +105,14 @@ class ScenarioInfo(BaseModel):
     judge_model: str = ""
     metrics: list[str] = Field(default_factory=list)
     error: str = ""
+    metric_weights: dict[str, float] = Field(
+        default_factory=dict,
+        description="从场景 YAML 读取的指标权重配置，供前端权重面板预填。",
+    )
+    doc_weights: dict[str, float] = Field(
+        default_factory=dict,
+        description="从场景 YAML 读取的文档权重配置，供前端权重面板预填。",
+    )
 
 
 class TaskStatus(BaseModel):