Add scoped worker upload tokens and HTTP artifact upload clients.
Support manifest-first multipart stage artifact uploads with validation and checksums.
Gate artifact reads by run capability while preserving legacy scratch fallback.
Eliminates confusing alias (`ApiAggregateUsageTotals`) by giving the
internal accumulator struct a distinct name. Adds a TODO for removing
the OAS 3.1→3.0 patch when progenitor gains 3.1 support.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace typify-only type generation with progenitor, which generates both
Rust types (in a `types` module) and a reqwest-based HTTP client from the
OpenAPI spec. Also upgrades reqwest 0.12→0.13 and rmcp 0.15→1.3 to align
dependency versions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
