[t-009] Create page_builder.py — build sessions page from Hermes dat
[t-008] Create page.py models — Page structure + FeedComponent union
[t-007] Create hermes_client.py — httpx async HTTP client for Hermes
[t-006] Create app_data route — HTTP GET /v1/ios/app_data + GraphQL
[t-002] Create config.py — Pydantic YAML loader
[t-004] Create server.py + lifespan.py — App startup & router regist
[t-003] Create auth.py — Bearer token middleware
[t-001] Create pyproject.toml + project scaffolding