Normalize every provider to one cache-inclusive convention via
canonicalizeUsage() before persist, and price cached + cache_creation as
subsets of prompt_tokens in calculateCostFromTokens() to stop
double-counting. usageRepo now delegates cost math to a single source.
Surface Cached tokens/cost across dashboard (overview, tokens, cost,
details). Merge Claude message_start cache with message_delta output so
cache counts survive. Compatible LLM nodes now allow multiple API-key
connections (key pool).
Co-authored-by: Cursor <cursoragent@cursor.com>
Third-party Anthropic-compatible gateways that require Authorization: Bearer
(in addition to x-api-key) returned 401 missing_api_key on the forward path.
For non-official upstreams, also send Bearer <apiKey> alongside x-api-key.
Official api.anthropic.com behavior is unchanged.
Co-authored-by: Cursor <cursoragent@cursor.com>