新增PDF批量预生成

backend/app/schemas/certificate.py

@@ -23,6 +23,8 @@ class CertificateCreate(BaseModel):
 class CertificateOut(BaseModel):
     id: int
     learner_id: int
+    learner_name: str | None = None
+    import_batch_id: int | None = None
     project_code: str
     certificate_no: str
     certificate_name: str
@@ -37,3 +39,24 @@ class CertificateOut(BaseModel):
     updated_at: datetime
 
     model_config = {"from_attributes": True}
+
+
+class PdfPregenerationJobCreate(BaseModel):
+    certificate_ids: list[int] = Field(default_factory=list, max_length=5000)
+    import_batch_id: int | None = None
+
+
+class PdfPregenerationJobOut(BaseModel):
+    id: str
+    status: str
+    total: int
+    completed: int
+    generated: int
+    cached: int
+    skipped: int
+    failed: int
+    percent: int
+    concurrency_limit: int
+    errors: list[str]
+    created_at: datetime
+    finished_at: datetime | None = None