fix: align verification response field order

app/schemas/verification.py

@@ -23,8 +23,8 @@ class VerificationReport(BaseModel):
     user_gmail: str | None = None
     input: dict[str, Any]
     filename_analysis: dict[str, Any] = Field(default_factory=dict)
-    provenance: dict[str, Any]
     metadata: dict[str, Any]
+    provenance: dict[str, Any]
     visible_watermark_ocr: dict[str, Any] = Field(default_factory=dict)
     visible_watermark_template: dict[str, Any] = Field(default_factory=dict)
     synthid: dict[str, Any] = Field(default_factory=dict)