✨ (context-module) [LIVE-26528]: Add account ownership context loader for concordium address verification

[lysyi3m]

📝 Description

Implements the context module layer for the Concordium verify-address flow (ADR 001). Adds a new ACCOUNT_OWNERSHIP context type and a loader that queries the trusted metadata service (GET /v2/concordium/owner/{pubkey}/{address}) for signed account ownership descriptors, along with PKI certificate loading for device-side verification. This follows the same architecture as the existing Safe module and lays the groundwork for the signer-concordium's verifyAddress implementation in a follow-up PR.

❓ Context

• JIRA or GitHub link: LIVE-26528

• Feature:

✅ Checklist

Pull Requests must pass CI checks and undergo code review. Set the PR as Draft if it is not yet ready for review.

• Covered by automatic tests
• Changeset is provided
• Documentation is up-to-date
• Impact of the changes: The ACCOUNT_OWNERSHIP enum addition required mechanical updates to all exhaustive ClearSignContextType switches in signer-eth (ProvideContextTask, BuildBaseContexts, BuildSubcontextsTask, ProvideEIP712ContextTask) — no behavioral change, just adding pass-through/unsupported cases.

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🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.

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Project	Deployment	Actions	Updated (UTC)
device-sdk-ts-sample	Ready	Preview, Comment	Apr 14, 2026 0:14am

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
doc-device-management-kit	Ignored		Apr 14, 2026 0:14am

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Danger Check Results

Messages

✅	Danger: All checks passed successfully! 🎉

Generated by 🚫 dangerJS against 106a40f

[sonarqubecloud]

Quality Gate failed

Failed conditions
10.7% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud