feat: add job models with Pydantic

app/models.py

@@ -0,0 +1,48 @@
+import secrets
+from datetime import datetime, timezone
+from enum import Enum
+
+from pydantic import BaseModel, Field
+
+
+class JobStatus(str, Enum):
+    QUEUED = "queued"
+    RUNNING = "running"
+    COMPLETED = "completed"
+    FAILED = "failed"
+
+
+class Progress(BaseModel):
+    frame: int = 0
+    fps: float = 0.0
+    time: str = "00:00:00.00"
+    bitrate: str = "0kbits/s"
+    percent: float | None = None
+
+
+class Job(BaseModel):
+    id: str = Field(default_factory=lambda: f"job_{secrets.token_hex(8)}")
+    status: JobStatus = JobStatus.QUEUED
+    command: str
+    created_at: datetime = Field(default_factory=lambda: datetime.now(timezone.utc))
+    started_at: datetime | None = None
+    completed_at: datetime | None = None
+    progress: Progress | None = None
+    output_files: list[str] = Field(default_factory=list)
+    error: str | None = None
+
+
+class CreateJobRequest(BaseModel):
+    command: str
+
+
+class JobResponse(BaseModel):
+    id: str
+    status: JobStatus
+    command: str
+    created_at: datetime
+    started_at: datetime | None = None
+    completed_at: datetime | None = None
+    progress: Progress | None = None
+    output_files: list[str] = Field(default_factory=list)
+    error: str | None = None