Initial scaffold: FastAPI backend + Vue 3 frontend + Docker setup

Backend: config/db/security/logging core, SQLAlchemy models (Server,
Credential, UpdateJob, UpdateLog, AuditLog, User), services (winrm, ssh,
cau, audit, job_runner), REST API (auth, servers, updates, audit),
Socket.io WebSocket layer.
Frontend: Vue 3 + TS + Pinia + Tailwind, Views (Dashboard, Servers,
Updates, Audit, Login), axios + socket.io-client, nginx prod config.

backend/app/schemas/update.py

@@ -0,0 +1,42 @@
+"""Update job schemas."""
+
+from datetime import datetime
+
+from pydantic import BaseModel, ConfigDict
+
+from app.models.update_job import JobStatus, JobType
+
+
+class JobTriggerRequest(BaseModel):
+    server_id: int
+    type: JobType
+    # CAU-specific options
+    cluster_name: str | None = None
+    # Linux-specific options
+    reboot_if_required: bool = False
+
+
+class UpdateJobRead(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    server_id: int
+    type: JobType
+    status: JobStatus
+    progress_percent: int
+    current_phase: str | None
+    started_by: str
+    started_at: datetime | None
+    finished_at: datetime | None
+    error: str | None
+    created_at: datetime
+
+
+class UpdateLogRead(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    job_id: int
+    timestamp: datetime
+    level: str
+    line: str