feat(opsm): add AffineScript and RattleScript registry plugins (103 total)

Two new Elixir registry adapters:

- Opsm.Registries.AffineScript: git-fallback mode (packages.affinescript.dev
  planned), parses affine.toml [package] section, 12 curated packages
  (affine-std, affine-wasm, affine-effects, affine-resources, affine-test,
  affine-json, affine-http, affine-fmt, affine-row, affine-crypto,
  typed-wasm-rt, groovebind). Aliases: affinescript / affine / afs.

- Opsm.Registries.RattleScript: Python-face of AffineScript, shares the same
  affine.toml manifest (face = "rattlescript"), 10 curated Rattle-native
  packages (rattle-std, rattle-numpy, rattle-pandas, rattle-asyncio,
  rattle-requests, rattle-pytest, rattle-typing, rattle-pathlib,
  rattle-dataclasses, rattle-groovebind). Transparently falls through to
  AffineScript registry for any package not in the Rattle catalogue — no
  re-packaging required. Aliases: rattlescript / rattle / rts.

Wired into Registry dispatcher and @all_primary_forths. Count: 101 → 103.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: hyperpolymath