Copilot instructions

1# OmniRoute PR and Coverage Instructions
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3- Treat `npm run test:coverage` as a required gate for PR work.
4- The repository minimum is `60%` for statements, lines, functions, and branches.
5- If a PR changes production code in `src/`, `open-sse/`, `electron/`, or `bin/`, it must include automated tests in the same PR.
6- When reviewing or updating a PR, if the report shows missing tests or coverage below `60%`, do not stop after reporting the problem. Add or update tests in the PR first, rerun the coverage gate, and only then ask for confirmation.
7- Prefer the smallest test layer that proves the behavior:
8  - unit tests first
9  - integration tests when multiple modules or DB state are involved
10  - e2e only when the behavior is truly UI or workflow-dependent
11- For bug issues, try to encode the reproduction as an automated test before or alongside the fix.
12- In the final PR report, include:
13  - the commands you ran
14  - the changed test files
15  - the final coverage result
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