gnucash stable: Multiple changes pushed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/49879373 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/8846ff46 (commit)
	from  https://github.com/Gnucash/gnucash/commit/5f701785 (commit)



commit 49879373c922e7ff073ec51ac63cf877d6396614
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Thu Aug 21 23:09:13 2025 +0800

    [trep-engine] link to invoice in trep
    
    multiple ways to extract link to invoice in the trep
    
    complicated algorithm to ensure successful invoice extraction. tested
    on: income, APAR, asset accounts. if a payment covers multiple
    invoices, show all of them.

commit 8846ff46059b29f56b402ed9dffcf70e6d86c58b
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sun Aug 24 17:48:39 2025 +0800

    [test-engine-extras] add invoice IDs to test invoices



Summary of changes:
 bindings/guile/test/test-engine-extras.scm         |  8 ++++++
 .../reports/standard/test/test-transaction.scm     | 18 ++++++++++++++
 gnucash/report/trep-engine.scm                     | 29 ++++++++++++++++++++++
 3 files changed, 55 insertions(+)