feat: add copy-link button next to Share route

[GeiserX]

Summary

Follow-up to live feedback: the station popup got a direct Copy-link button in v1.6.1, but the route only had Share. This adds a matching Copy button beside "Share route" in the search panel.

• Route footer is now a two-button row: Share route (native share sheet, clipboard fallback) + Copy (writes the route deep-link straight to the clipboard, no share sheet).
• Both build the same URL via a shared routeShareUrl() helper.
• Reuses the existing popup.copyLink i18n key (16 locales).

Test plan

• tsc clean
• 531 tests pass (+1: copy-route writes the route URL, does not invoke the share sheet)
• next build ok

[coderabbitai]

Warning

Review limit reached

@GeiserX, we couldn't start this review because you've reached your PR review rate limit.

More reviews will be available in 46 minutes and 13 seconds. Learn how PR review limits work.

Your organization has run out of usage credits. Purchase more in the billing tab.

⌛ How to resolve this issue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans include higher PR review limits than trial, open-source, and free plans. In all cases, reviews become available again over time. During sustained high-volume PR review activity, CodeRabbit may temporarily slow when the next review becomes available.

Please see our Fair Usage Limits Policy for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 886c6b15-995f-49a4-96fb-fc5db611c7ee

📥 Commits

Reviewing files that changed from the base of the PR and between 9bbc1ae and f8c6edd.

📒 Files selected for processing (2)

• src/components/search/search-panel.deeplink.test.tsx
• src/components/search/search-panel.tsx

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/copy-route-button

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}