Gong: fix endpoints to POST (not GET), remove non-existent /v2/deals,
use tenant-specific base URL, correct recording limitation, add source
links. RB2B: clarify API Partner Program vs native integrations, add
pricing volatility note and source links. Registry: fix '10k calls'
to '10k API calls'.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>