docs(site): add Hermes multi-provider dispatch page (pairs with monorepo PR #555)
Adds content/docs/hermes.mdx — full reference for Hermes Phases 2a/2b/2c:
dispatch table (key priority order), secrets setup, quickstart for native
Anthropic + Gemini paths, multi-turn history demo, multi-provider fan-out
example, capability table (shipped vs Phase 2d roadmap), and troubleshooting.
Updates meta.json to add hermes to the Runtimes nav section.
Pairs with: Molecule-AI/molecule-monorepo#555 (docs/devrel-feat-hermes-multimodel)
Source PRs: molecule-core#240 (Phase 2a), #255 (Phase 2b), #267 (Phase 2c)
Closes #513
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>