feat: process leave encashment via payment entry (backport #2775)

[mergify]

Previously, Leave Encashment was always processed by creating an Additional Salary on submission, which was later paid through the Salary Slip.

• Add an option to process Leave Encashment via a Payment Entry instead of a Salary Slip.
• Introduced a status field to track payment status.
• Status now updates when paid via Payment Entry or Salary Slip.

Patch to update payment status of existing, submitted leave encashment docs based on whether they have been paid via salary slip

Before:
No status tracking, only Salary Slip-based payment.

After:

Documentation Link: https://docs.frappe.io/hr/leave-encashment

---

This is an automatic backport of pull request #2775 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 7166782 has failed:

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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

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	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.js

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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

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Changes to be committed:
	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.js

Unmerged paths:
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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

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Changes to be committed:
	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.js
	modified:   hrms/public/js/erpnext/payment_entry.js

Unmerged paths:
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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

Cherry-pick of 989bdaf has failed:

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Changes to be committed:
	modified:   hrms/overrides/employee_payment_entry.py

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	both modified:   hrms/hooks.py

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Changes to be committed:
	new file:   hrms/patches/v15_0/update_payment_status_for_leave_encashment.py

Unmerged paths:
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	both modified:   hrms/hr/doctype/leave_encashment/test_leave_encashment.py

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Changes to be committed:
	modified:   hrms/hooks.py
	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.js
	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.py

Unmerged paths:
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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

Cherry-pick of fa49658 has failed:

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Changes to be committed:
	modified:   hrms/hr/doctype/leave_encashment/leave_encashment.py
	deleted:    hrms/patches/v15_0/update_payment_status_for_leave_encashment

Unmerged paths:
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	both modified:   hrms/hr/doctype/leave_encashment/leave_encashment.json

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[AyshaHakeem]

Suggested change

	<<<<<<< HEAD
	advance_payment_doctypes = ["Gratuity", "Employee Advance"]
	=======
	advance_payment_payable_doctypes = ["Leave Encashment", "Gratuity", "Employee Advance"]
	>>>>>>> 989bdafc (feat: payment entry for leave encashment)
	advance_payment_payable_doctypes = ["Leave Encashment", "Gratuity", "Employee Advance"]

[AyshaHakeem]

Suggested change

	"modified": "2023-10-23 16:49:16.737157",
	"modified": "2025-02-21 13:11:01.939992",
	"modified": "2025-02-21 13:11:01.939992",