feat: Auto accrue loan interest for backdated term loans

[deepeshgarg007]

Loan Interest has to be accrued even for 0 interest loans for the loan amount to show up in Salary Slip. Loan Interest Accrual is a background job that runs at the end of the day, there are cases where users create a loan and directly try to make a salary slip but the loan amount doesn't show up since it's not accrued yet.

To resolve this confusion added a provision to auto accrue loans for such scenarios

no-docs

[codecov]

Codecov Report

Merging #31127 (96d8b1e) into develop (39fad39) will increase coverage by 0.10%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop   #31127      +/-   ##
===========================================
+ Coverage    62.97%   63.07%   +0.10%     
===========================================
  Files          984      986       +2     
  Lines        67186    67376     +190     
===========================================
+ Hits         42311    42500     +189     
- Misses       24875    24876       +1     

Impacted Files	Coverage Δ
erpnext/loan_management/doctype/loan/loan.py	68.49% <100.00%> (+0.54%)	⬆️
erpnext/payroll/doctype/salary_slip/salary_slip.py	86.12% <100.00%> (-0.15%)	⬇️
...eport/item_variant_details/item_variant_details.py	31.32% <0.00%> (-53.02%)	⬇️
.../report/delayed_item_report/delayed_item_report.py	60.78% <0.00%> (-35.30%)	⬇️
...tch_item_expiry_status/batch_item_expiry_status.py	67.92% <0.00%> (-24.53%)	⬇️
...wise_balance_history/batch_wise_balance_history.py	67.79% <0.00%> (-22.04%)	⬇️
...saction/incorrect_balance_qty_after_transaction.py	88.37% <0.00%> (-9.31%)	⬇️
...t/accounts/report/sales_register/sales_register.py	71.92% <0.00%> (-5.85%)	⬇️
...pnext/accounts/report/gross_profit/gross_profit.py	80.24% <0.00%> (-4.94%)	⬇️
...e/asset_value_adjustment/asset_value_adjustment.py	86.04% <0.00%> (-3.49%)	⬇️
... and 60 more

[deepeshgarg007]

@Mergifyio backport version-13-hotfix

[deepeshgarg007]

@Mergifyio backport version-13-hotfix

[mergify]

backport version-13-hotfix

✅ Backports have been created

• #31186 feat: Auto accrue loan interest for backdated term loans (backport #31127) has been created for branch version-13-hotfix