feat(recent-search): add parameter to allow dynamic limit of returned…

[cristianscheid]

• Resolves: #

Summary

• Related to feat(recent-files): add recent_files_limit config on files settings nextcloud/server#58761

• Adds limit parameter to getRecentSearch() to control the maximum number of results returned
• Adds support for <nc:last_activity/> ordering when available as a backend capability, falling back to <d:getlastmodified/> otherwise

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 72.56%. Comparing base (d366d98) to head (e3a640c).
⚠️ Report is 8 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/dav/davProperties.ts	75.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1527      +/-   ##
==========================================
+ Coverage   72.53%   72.56%   +0.02%     
==========================================
  Files          40       40              
  Lines        1107     1108       +1     
  Branches      271      271              
==========================================
+ Hits          803      804       +1     
  Misses        272      272              
  Partials       32       32              

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