feat: near intents plasma support

[gomesalexandre]

Description

Add Plasma as a supported chain for NEAR Intents swapper.

Issue (if applicable)

Risk

Low - Plasma uses existing EVM infrastructure, and NEAR Intents API handles it correctly.

What protocols, transaction types, wallets or contract interactions might be affected by this PR?

NEAR Intents swaps involving Plasma.

Testing

Engineering

Test Plasma swaps via NEAR Intents with supported assets (XPL native, USDT).

NOTE: USDT on Plasma is theoretically supported as per API, but currently broken upstream, not able to trade it, so only XPL should be tested here.

Operations

• 🏁 My feature is behind a flag and doesn't require operations testing (yet)

Screenshots (if applicable)

https://jam.dev/c/09c46a42-80e0-49d2-9b39-7b92b9063383

Summary by CodeRabbit

• New Features
  • Added support for the PlasmaMainnet blockchain network in the swapper, enabling swaps and transactions on this new chain.
  • Updated internal chain mappings and protocol chain list so the app recognizes and routes swaps for PlasmaMainnet seamlessly.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

📝 Walkthrough

Walkthrough

Added PlasmaMainnet as a supported NEAR Intents chain: included in supported chain IDs, mapped to the string 'plasma', and registered in the NEP-245 chains constant.

Changes

Cohort / File(s)	Change Summary
NEAR Intents types & mappings packages/swapper/src/swappers/NearIntentsSwapper/types.ts	Added PlasmaMainnet to nearIntentsSupportedChainIds and added PlasmaMainnet -> 'plasma' in chainIdToNearIntentsChain.
NEP-245 chain list packages/swapper/src/swappers/NearIntentsSwapper/utils/helpers/helpers.ts	Extended NEP245_CHAINS to include the 'plasma' entry.

Sequence Diagram(s)

(omitted — changes are configuration/constants only)

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• feat: near intents NEP-245 support #11043 — Also extends NEP-245 chain lists by adding PlasmaMainnet ('plasma') to the same constants.
• feat: near intents bch support #11701 — Modifies NEAR Intents supported chain lists and mappings to add a different chain; overlaps the same constants.
• fix: missing plasma flag filter #11361 — Adjusts handling of PlasmaMainnet (feature-flag filtering) and thus may interact with this change.

Suggested reviewers

• premiumjibles

Poem

🐰 A tiny hop, a plasma cheer,
New chain added, bright and clear,
'plasma' mapped, the lists expand,
Swapper hops across the land ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title 'feat: near intents plasma support' clearly and concisely describes the main change: adding Plasma as a supported chain for the NEAR Intents swapper. The title directly aligns with the file changes, which add PlasmaMainnet to supported chain IDs and the NEP245_CHAINS constant.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat_near_plasma

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[NeOMakinG]

https://jam.dev/c/5b60df77-264c-4c08-af40-6d53cc933ece