chore: add requested test copyright headers (#218)

[emrekayat]

Closes #218.

Prepends the requested header to all 22 listed files that exist on current main. Verified that removing the added first line reproduces each original byte-for-byte. The following issue paths have already been removed from main and are not recreated: apps/web/src/commands/__tests__/doctor.test.ts, examples/grant-scoring/src/pilot.test.ts, examples/grant-scoring/src/reveal-readiness.test.ts, examples/grant-scoring/src/scoring.test.ts.

Validation: Mechanical comparison confirms the requested first line is the only change in every modified file.

[Copilot]

🟢 Approval recommended

The changes are mechanical, match the exact header requested by #218, and apply it as the first line in each targeted file without introducing functional modifications.

Pull request overview

Adds the per-file copyright header requested in #218 to the targeted test files so ownership is visible at the file level, consistent with the repository LICENSE.

Changes:

• Prepends // Copyright (c) 2026 Sub Rosa contributors as the first line in each of the listed test files that still exist on main.
• Leaves removed-from-main paths (not present in this PR) untouched, matching the issue scope.
• Keeps the remainder of each file byte-for-byte unchanged beyond the single prepended line (per PR description).

File summaries

File	Description
services/agent/src/bidder.test.ts	Prepends requested copyright header.
services/agent/src/mandate-cap-negative.test.ts	Prepends requested copyright header.
services/agent/src/mandate.test.ts	Prepends requested copyright header.
services/appraisal-api/src/appraisal-fixtures.test.ts	Prepends requested copyright header.
services/appraisal-api/src/appraisal.test.ts	Prepends requested copyright header.
services/appraisal-api/src/config.test.ts	Prepends requested copyright header.
services/auction-template/sealed-auction.smoke.test.ts	Prepends requested copyright header.
services/keeper/src/dry-run.test.ts	Prepends requested copyright header.
services/keeper/src/keeper.test.ts	Prepends requested copyright header.
services/keeper/src/queue-replay.test.ts	Prepends requested copyright header.
services/keeper/src/settlement-guard.test.ts	Prepends requested copyright header.
services/keeper/src/status-server.test.ts	Prepends requested copyright header.
services/keeper/src/status.test.ts	Prepends requested copyright header.
services/keeper/src/store.test.ts	Prepends requested copyright header.
services/keeper/src/watch-queue.test.ts	Prepends requested copyright header.
services/keeper/src/watch.test.ts	Prepends requested copyright header.
services/receipt-cli/src/receipt.test.ts	Prepends requested copyright header.
apps/web/src/components/dashboard/RoundStatusCard.test.tsx	Prepends requested copyright header.
apps/web/src/dashboard/fixture-health-check.test.ts	Prepends requested copyright header.
apps/web/src/demo/trace-health-check.test.ts	Prepends requested copyright header.
apps/web/src/lib/config.test.ts	Prepends requested copyright header.
apps/web/src/lib/round-status.test.ts	Prepends requested copyright header.

Review details

• Files reviewed: 22/22 changed files
• Comments generated: 0
• Review effort level: Lite

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