Custom Apps: graduate from experimental

[rlnorthcutt]

Problem statement

Custom apps (Python backend + web frontend) work but are still experimental, with no standard starting point, so every custom app is built from scratch with inconsistent structure.

What success looks like

A user can build a custom app from a standard skill and default template, and the tool ships with a small set of example apps out of the box.

Impacted repositories

• omnideck

Acceptance criteria

• A custom-app-authoring skill ships.
• A default template app exists for the py-backend/web-frontend path.
• A handful of example apps ship with the product.

Explicitly out of scope

• Extending custom apps to other frameworks or existing open-source projects — noted as a future backlog direction, not scoped into this epic.