fix: sync URL hash when following same-page search hits

[btea]

followSearchHit only called scrollIntoView() for same-page hits, leaving the address bar without a hash (or stuck on a stale one from a previously followed hit). Push the hit's hash via history.pushState before scrolling so the URL always reflects the jumped-to anchor.

rel #955 (comment) cc @avivkeller

Description

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Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run node --run test and all tests passed.
• I have check code formatting with node --run format:check & node --run lint.
• I've covered new added functionality with unit tests if necessary.

[cursor]

PR Summary

Low Risk
Small UX fix in doc search navigation with no auth, data, or API impact.

Overview
Fixes same-page search hits so the address bar updates to the target fragment instead of only scrolling via scrollIntoView.

followSearchHit now closes the modal (unchanged Escape dispatch), waits two animation frames so the modal is gone, then sets window.location.href to the hit link. Same-page targets use the browser’s native fragment navigation (hash, scroll, history); cross-page hits still load normally. The old branch that parsed the URL and manually scrolled by element id is removed.

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Project	Deployment	Actions	Updated (UTC)
api-docs-tooling	Ready	Preview	Jul 31, 2026 2:29am

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.63%. Comparing base (b80958f) to head (7f459f7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #963   +/-   ##
=======================================
  Coverage   86.63%   86.63%           
=======================================
  Files         195      195           
  Lines       17938    17938           
  Branches     1632     1632           
=======================================
  Hits        15540    15540           
  Misses       2392     2392           
  Partials        6        6           

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