fix: show a focus outline on the copy button

[OmerDavidson]

the copy button was not showing it was focused. making it inaccessible to keyboard users.
before:

after:

.copy-button set outline: none unconditionally, so the code block copy button was reachable by keyboard but gave no visible indication of focus.

This drops the blanket outline: none and draws an explicit ring on :focus-visible, so it appears for keyboard users without showing up on mouse clicks. The ring uses --color-text-primary, which is already theme-aware, so it contrasts against the code block in both light and dark mode.

[vercel]

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Project	Deployment	Actions	Updated
api-docs-tooling	Ready	Preview	Sep 5, 2026 5:30pm UTC

[OmerDavidson]

Can someone trigger the ci?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.60%. Comparing base (de3427a) to head (ac61900).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1087      +/-   ##
==========================================
- Coverage   90.60%   90.60%   -0.01%     
==========================================
  Files         217      217              
  Lines       20802    20801       -1     
  Branches     1974     1974              
==========================================
- Hits        18847    18846       -1     
  Misses       1948     1948              
  Partials        7        7              

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[github-actions]

api-links Generator

Performance estimate _{(single CI run)}

• Generation time: 14.0% slower (1.21 s → 1.38 s)
• Peak memory: 1.6% lower (357.99 MB → 352.18 MB)

legacy-html Generator

Output size: 1 file changed · net +86.00 B

File size details

File	Main	PR	Change
assets/style.css	18.10 KB	18.18 KB	+86.00 B (+0.5%)

Performance estimate _{(single CI run)}

• Generation time: 6.8% faster (41.61 s → 38.76 s)
• Peak memory: 1.9% higher (2.50 GB → 2.55 GB)

legacy-json Generator

Performance estimate _{(single CI run)}

• Generation time: 5.4% faster (22.11 s → 20.91 s)
• Peak memory: 3.4% higher (1.90 GB → 1.97 GB)

llms-txt Generator

Performance estimate _{(single CI run)}

• Generation time: 33.1% faster (20.97 s → 14.02 s)
• Peak memory: 2.6% higher (1.93 GB → 1.98 GB)

orama-db Generator

Output size: 1 file changed · net -108.00 B

File size details

File	Main	PR	Change
orama-db.json	9.36 MB	9.36 MB	-108.00 B (-0.0%)

Performance estimate _{(single CI run)}

• Generation time: 7.5% slower (20.41 s → 21.94 s)
• Peak memory: 0.9% lower (1.91 GB → 1.90 GB)

web Generator

Output size: 1 file changed · net +246.00 B

File size details

File	Main	PR	Change
all.html	32.46 MB	32.46 MB	+246.00 B (+0.0%)

Performance estimate _{(single CI run)}

• Generation time: 2.7% slower (126.59 s → 129.99 s)
• Peak memory: 9.7% lower (5.89 GB → 5.32 GB)

[OmerDavidson]

I don't have permission to merge. Can someone merge please?