[vcnainala]

Summary

• Add ilike to allowed Lomkit REST API search filter operators for PostgreSQL case-insensitive matching
• Extend Lomkit SearchRequest validation via dedicated App\Http\Requests\Rest\SearchRequest and custom search rules
• No custom query builder required — Laravel's PostgreSQL grammar already handles ilike once validation passes

Closes #335

Supersedes the closed PR #398, which targeted an older Lomkit API and included unnecessary CustomBuilder wiring.

Test plan

• php artisan test --filter=MoleculeSearchIlike
• ilike matches case-insensitively (e.g. %caffeine% finds Caffeine)
• like remains case-sensitive on PostgreSQL
• Unknown operators return 422 validation error

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.83333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 16.14%. Comparing base (a4c26c6) to head (08e2385).
⚠️ Report is 16 commits behind head on development.

Files with missing lines	Patch %	Lines
app/Rules/Search/SearchFilter.php	94.59%	2 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##             development     #806      +/-   ##
=================================================
+ Coverage           6.14%   16.14%   +9.99%     
- Complexity          1736     1868     +132     
=================================================
  Files                227      234       +7     
  Lines               8945     9497     +552     
=================================================
+ Hits                 550     1533     +983     
+ Misses              8395     7964     -431     

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