Gherkin spec for connecting YouTube/Vimeo accounts and configuring optional
per-provider BYO AI credentials: connections sync subscriptions, tokens/keys are
stored only as secret references (never in the clear), revocation stops watching
but preserves history. Encodes the secrets-by-reference and data-isolation
guardrails (ADR-002, ADR-006, data-model).
Gherkin spec for the routing guardrail: local produces the summary by default;
on local failure, fall back only to a user-configured BYO provider; with no BYO,
queue for retry and never send content to a third-party model. Encodes the
local-first/user-owned principle (VISION) as executable behavior.
Gherkin spec for the core use case: captioned video is summarized and delivered;
no-transcript video is recorded as skipped; unsubscribed channels are ignored;
already-summarized videos are not reprocessed. These scenarios seed the use-case
test suite (Clean Architecture core tested through fake adapters).
mathias