Initial project scaffold

Full-stack homeschool web app with FastAPI backend, Vue 3 frontend,
MySQL database, and Docker Compose orchestration. Includes JWT auth,
WebSocket real-time TV dashboard, schedule builder, activity logging,
and multi-child support.

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

backend/app/schemas/session.py

@@ -0,0 +1,44 @@
+from datetime import date, datetime
+from pydantic import BaseModel
+from app.schemas.schedule import ScheduleBlockOut
+from app.schemas.child import ChildOut
+
+
+class SessionStart(BaseModel):
+    child_id: int
+    template_id: int | None = None
+    session_date: date | None = None  # defaults to today
+
+
+class TimerAction(BaseModel):
+    event_type: str  # start | pause | resume | complete | skip
+    block_id: int | None = None
+
+
+class TimerEventOut(BaseModel):
+    id: int
+    block_id: int | None
+    event_type: str
+    occurred_at: datetime
+
+    model_config = {"from_attributes": True}
+
+
+class DailySessionOut(BaseModel):
+    id: int
+    child_id: int
+    template_id: int | None
+    session_date: date
+    is_active: bool
+    current_block_id: int | None
+    current_block: ScheduleBlockOut | None = None
+
+    model_config = {"from_attributes": True}
+
+
+class DashboardSnapshot(BaseModel):
+    """Public TV dashboard payload — no auth required."""
+    session: DailySessionOut | None
+    child: ChildOut
+    blocks: list[ScheduleBlockOut] = []
+    completed_block_ids: list[int] = []