[wip]ft: addong arc testnet

[nikhilkumar1612]

Description

• adding support for arc testnet

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Summary by CodeRabbit

• New Features
  • Added support for Arc Testnet, including network details, RPC access, explorer info, and related configuration.
• Chores
  • Updated the app version to 2.1.5.
  • Upgraded the Modular SDK to 6.1.2.
  • Added a new changelog entry for this release.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d5df2589-f3b7-438a-850d-87539019f32e

📥 Commits

Reviewing files that changed from the base of the PR and between d00b679 and fb0f257.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (3)

• CHANGELOG.md
• lib/constants/index.ts
• package.json

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📝 Walkthrough

Walkthrough

Arc Testnet support was added to the network constants, including its chain id and chain configuration. The release was bumped to 2.1.5, the changelog was updated, and @etherspot/modular-sdk was upgraded to 6.1.2.

Changes

Arc Testnet support and release update

Layer / File(s)	Summary
Arc Testnet network registry lib/constants/index.ts	SupportedNetworks, NetworkNames, the chain-id mapping, and the Arc Testnet Networks[5042002] configuration are added.
Release metadata and SDK bump CHANGELOG.md, package.json	The 2.1.5 changelog entry is added, the package version changes to 2.1.5, and @etherspot/modular-sdk changes to 6.1.2.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• etherspot/transaction-kit#192: Adds Arc Testnet entries to the network constants registry in the same area of code.

Suggested reviewers

• IAmKio

Poem

I nibbled a carrot and hopped to Arc,
A new little testnet glows in the dark.
My whiskers twitched at 2.1.5,
With SDK bells and chain maps alive.
Hop hop—this release is bright! 🐇

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly points to the main change: adding Arc testnet support, despite minor typos and a work-in-progress prefix.
Description check	✅ Passed	The description follows the template and summarizes the change, but the testing section is only a placeholder and lacks details.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch arc-testnet

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[github-actions]

Yooo! You forgot to bump the version in package.json!

[github-actions]

Yooo! You forgot to bump the version in package.json!

[ch4r10t33r]

LGTM