export tRPC error from toolkit

[naftis]

Description

Helps try catching the error in external repositories as I don't need to install tRPC as a dependency to get the error.

Checklist

• I have linked the correct Github issue under "Development"
• I have tested the changes locally, and written appropriate tests
• I have tested beyond the happy path (e.g. edge cases, failure paths)
• I have updated the changelog with this change (if applicable)
• I have updated the GitHub issue status accordingly

[github-actions]

Oops! Looks like you forgot to update the changelog. When updating CHANGELOG.md, please consider the following:

• Changelog is read by country implementors who might not always be familiar with all technical details of OpenCRVS. Keep language high-level, user friendly and avoid technical references to internals.
• Answer "What's new?", "Why was the change made?" and "Why should I care?" for each change.
• If it's a breaking change, include a migration guide answering "What do I need to do to upgrade?".

[github-actions]

ℹ️ Coverage metrics explained:
• Statements — Executed code statements (basic logic lines)
• Branches — Tested decision paths (if/else, switch, ternaries)
• Functions — Functions invoked during tests
• Lines — Source lines executed

[github-actions]

📊 commons test coverage

Statements: 67.37%
Branches:   33.29%
Functions:  50.6%
Lines:      66.79%
Updated at: Thu, 15 Jan 2026 12:00:27 GMT

[cibelius]

Cool beanz 👍

[github-actions]

📊 events test coverage

Statements: 85.31%
Branches:   84.11%
Functions:  90.47%
Lines:      85.31%
Updated at: Thu, 15 Jan 2026 12:04:59 GMT