[Aarti-panchal01]

Description

POST /search/advance (the ad-hoc loan search behind the Fund Mapping page) returns a 500 on PostgreSQL. The query aliases a column as 'count' in single quotes, which PostgreSQL rejects (syntax error at or near "'count'"); MySQL and MariaDB accept it. The alias is now unquoted (a.cnt as count), which works on all three, and the row mapper already reads the column as count.

Added a unit test in SearchReadServiceImplTest that checks the generated SQL has no quoted alias. It fails on develop and passes with this change.

Tested on a local Fineract with PostgreSQL 18: the request returned a 500 before the change and the grouped loans after it.

JIRA: https://issues.apache.org/jira/browse/FINERACT-2973

Checklist

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[Aarti-panchal01]

The first CI run failed on PostgreSQL shard 6 before any test ran: Maven Central did not return org.jacoco.agent-0.8.14.jar ("Could not find org.jacoco.agent-0.8.14.jar" in every module). I re-pushed the same change (only the commit date changed) to rerun it.