Merge Down from main into dev: reconcile a genuine two-way divergence.
README.md, ReleaseNotes.adoc: dev and main had each picked up different,
non-overlapping fixes today (dev: Swarm link fixes; main: platform-support
typo, duplicate rebranding bullet). Both merged automatically with no
conflicts (verified: 0 conflicting chunks each). ReleaseProcessOverview.md
was a straightforward main-ahead case (release-stream naming notation
fix).
Agent: Claude Code, Model: Claude Sonnet 5 (claude-sonnet-5), operating as bot_Claude_Anthropic.