Publish rain.pyth releases to the soldeer registry

[hardyjosh]

Context

ST0x-Technology/st0x.oracle is migrating from git submodules to soldeer (matching the canonical pattern used by st0x.deploy and other ST0x/Rain repos). It depends on rain.pyth, but rain.pyth is the only Rain dep that's still not published to soldeer.

To stay green, the consumer is currently using a hybrid:

[dependencies.rain-pyth]
version = "0.0.0-git"
git = "https://github.com/rainlanguage/rain.pyth"
rev = "e7a45068d5aac93e92aec55d7bf1f58e66319a53"

plus a manual remapping bridge into rain.pyth's vendored lib/pyth-crosschain/ submodule:

"pyth-sdk/=dependencies/rain-pyth-0.0.0-git/lib/pyth-crosschain/target_chains/ethereum/sdk/solidity/"

This is brittle: pulling git source via soldeer also doesn't auto-init nested submodules, so consumers need an extra git submodule update --init lib/pyth-crosschain step after forge soldeer install, which CI tooling like rainix doesn't do.

Ask

Publish tagged releases of rain.pyth to soldeer (soldeer push rain-pyth~X.Y.Z) so downstream repos can consume it as a normal "rain-pyth" = "X.Y.Z" dep, drop the git-source + bridge-remapping workaround, and stop relying on transitive submodule init.

Downstream impact

• ST0x-Technology/st0x.oracle PR #237 stack — would simplify the foundry.toml + delete the bridge remapping.

[thedavidmeister]

✅ Resolved — rain-pyth is now published to soldeer at 0.1.0 (https://soldeer.xyz/project/rain-pyth).

Downstream (e.g. ST0x st0x.oracle) can now drop the git-source + submodule-bridge workaround and use:

"rain-pyth" = "0.1.0"

How it was wired:

• chore: de-submodule to soldeer (rain.interpreter -> rainlang, pyth SDK) #23 de-submoduled rain.pyth (removed the vendored pyth-crosschain submodule that made it unpublishable).
• ci: set up soldeer autopublish for rain-pyth #24 added [package] + a rainix-autopublish wrapper (soldeer-package: rain-pyth), so future version bumps publish on merge to main.
• soldeer: add .soldeerignore (unblock autopublish push) #25 added a .soldeerignore (mirroring raindex) so the CI push doesn't hang on soldeer's sensitive-file prompt.
• The rain-pyth soldeer.xyz project was created, and the publish ran green.