The native adapter's route was named deepseek, colliding with pi-ai's
catalog provider of the same name, so the two DeepSeek paths could never
be mounted side by side. The web settings page needs both configurable at
once. Compositions, fixtures, goldens, scaffolding defaults, and docs all
move together (pre-release, no shim); TUI/session-query-spill/
missing-credential goldens re-recorded through their keyless refresh
modes because provider-name length shifts box padding and spill
truncation points.
The key-gated todo_write e2e still pinned the previous contract: its
TODO_SYSTEM_PROMPT instructed at most one in_progress task and the
scenario never exercised parallel active tasks. Update the prompt to the
new guidance and make the scenario record two simultaneously in_progress
tasks; verified against the real API.
