fix(tui): keep provider links readable in narrow layouts

[roian6]

Summary

Fixes #3991.

• render /links provider Dashboard/Docs URLs as inline code instead of bare markdown URLs
• keep the full URL visible and copyable while avoiding oversized OSC 8 autolink payloads in narrow terminal layouts
• add a regression covering provider link output so future provider URLs do not reintroduce bare autolinks

Testing

• cargo fmt --all -- --check
• cargo clippy --workspace --all-targets --all-features
  • Not clean locally due pre-existing lint backlog outside this diff, e.g. crates/tui/src/tools/subagent/mod.rs:3024 (unnecessary_map_or) and crates/tui/src/tui/approval.rs:1027 (collapsible_if).
• cargo test --workspace --all-features
  • Not run; this PR is covered by the focused command/link test surface below.
• cargo test -p codewhale-tui --bin codewhale-tui links --locked — 16 passed
• git diff --check
• added-line secret scan — 0 findings
• CRLF scan for changed file — none

Checklist

• Updated docs or comments as needed
  • Not needed; this only changes /links rendering.
• Added or updated tests where relevant
• Verified TUI behavior manually if UI changes
  • Not manually captured; verified with a focused /links command-output regression.
• Harvested/co-authored credit uses a GitHub numeric noreply address
  • Not applicable; original change, no harvested/co-authored patch.

[github-actions]

Thanks @roian6 for taking the time to contribute.

This repository is observing a maintainer-managed PR intake gate in dry-run mode, so this pull request is staying open. This note helps maintainers prepare the allowlist before any enforcement is considered.

Please read CONTRIBUTING.md for the expected contribution shape. A maintainer can grant recurring PR access by commenting /lgtm on a pull request.

[Hmbown]

Wrapping provider URLs in inline-code backticks keeps narrow transcripts from emitting oversized OSC8 link payloads; URLs stay selectable/copyable. Tradeoff (accepted): they render as code rather than clickable OSC8 hyperlinks. Small and test-covered. Thanks @roian6.

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