FINERACT-2631: Extend FeignClientHelper with pending client creation, status transitions, and CRUD

[DeathGun44]

Description

Extends FeignClientHelper from 4 to 16 methods and adds ClientRequestBuilders and FeignClientLifecycleTest covering the full client lifecycle - pending creation, activate, close, reject, reactivate, withdraw, undo-reject, undo-withdraw, update, delete, search, and account retrieval.

Depends on: FINERACT-2632

Checklist

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[adamsaghy]

                                                                     ^
/home/runner/work/fineract/fineract/integration-tests/src/test/java/org/apache/fineract/integrationtests/client/feign/modules/ClientRequestBuilders.java:38: error: cannot find symbol
                .submittedOnDate(submittedOnDate)//
                ^
  symbol:   method submittedOnDate(String)
  location: class PostClientsRequest
/home/runner/work/fineract/fineract/integration-tests/src/test/java/org/apache/fineract/integrationtests/client/feign/modules/ClientRequestBuilders.java:77: error: cannot find symbol
                .withdrawalReasonId(withdrawalReasonId)//
                ^
  symbol:   method withdrawalReasonId(Long)
  location: class PostClientsClientIdRequest
/home/runner/work/fineract/fineract/integration-tests/src/test/java/org/apache/fineract/integrationtests/client/feign/modules/ClientRequestBuilders.java:85: error: cannot find symbol
                .reopenedDate(reopenedDate);
                ^
  symbol:   method reopenedDate(String)
  location: class PostClientsClientIdRequest
/home/runner/work/fineract/fineract/integration-tests/src/test/java/org/apache/fineract/integrationtests/client/feign/modules/ClientRequestBuilders.java:92: error: cannot find symbol
                .reopenedDate(reopenedDate);
                ^
  symbol:   method reopenedDate(String)
  location: class PostClientsClientIdRequest
/home/runner/work/fineract/fineract/integration-tests/src/test/java/org/apache/fineract/integrationtests/client/feign/modules/ClientRequestBuilders.java:97: error: cannot find symbol
                .firstname(firstname)//
                ^

Please run:
./gradlew spotlessApply spotbugsMain spotbugsTest checkstyleMain checkstyleTest
./gradlew --no-daemon build -x test -x cucumber -x doc

[DeathGun44]

@adamsaghy @budaidev rebased and ready for re review!

[adamsaghy]

LGTM

[adamsaghy]

@budaidev Please re-review it. (it is blocked till you rereview it)