feat: The Other Dude v9.0.1 — full-featured email system

ci: add GitHub Pages deployment workflow for docs site

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/models/maintenance_window.py

@@ -0,0 +1,74 @@
+"""Maintenance window ORM model for scheduled maintenance periods.
+
+Maintenance windows allow operators to define time periods during which
+alerts are suppressed for specific devices (or all devices in a tenant).
+"""
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, Text, VARCHAR, func
+from sqlalchemy.dialects.postgresql import JSONB, UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.database import Base
+
+
+class MaintenanceWindow(Base):
+    """Scheduled maintenance window with optional alert suppression.
+
+    device_ids is a JSONB array of device UUID strings.
+    An empty array means "all devices in tenant".
+    """
+    __tablename__ = "maintenance_windows"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True),
+        primary_key=True,
+        default=uuid.uuid4,
+        server_default=func.gen_random_uuid(),
+    )
+    tenant_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True),
+        ForeignKey("tenants.id", ondelete="CASCADE"),
+        nullable=False,
+    )
+    name: Mapped[str] = mapped_column(VARCHAR(200), nullable=False)
+    device_ids: Mapped[list] = mapped_column(
+        JSONB,
+        nullable=False,
+        server_default="'[]'::jsonb",
+    )
+    start_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+    )
+    end_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        nullable=False,
+    )
+    suppress_alerts: Mapped[bool] = mapped_column(
+        Boolean,
+        nullable=False,
+        default=True,
+        server_default="true",
+    )
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_by: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True),
+        ForeignKey("users.id", ondelete="SET NULL"),
+        nullable=True,
+    )
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        server_default=func.now(),
+        nullable=False,
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True),
+        server_default=func.now(),
+        nullable=False,
+    )
+
+    def __repr__(self) -> str:
+        return f"<MaintenanceWindow id={self.id} name={self.name!r}>"