[main] Calculate Inventory - Add check to skip report processing if Warehouse Entry table is empty

[Dusan Jakovljevic (JakovljevicDusan)]

What & why

Stop processing "Warehouse Entry" in each iteration when it is completely empty

Linked work

Fixes AB#646647

[alexei-dobriansky]

Agentic PR Review - Round 1

Recommendation: Accept

What this PR does

This PR skips the Warehouse Entry child dataitem when the Warehouse Entry table is completely empty. The flag is calculated once before the item loop and is only used for a case where that dataitem cannot return any records, so the journal-line creation paths through item ledger entries and items without transactions remain unchanged.

Suggestions

No suggestions.

Risk assessment and necessity

Risk: The touched report creates physical inventory journal lines, so an incorrect skip could affect inventory counting. The condition is narrow, duplicated consistently in W1 and RU, and does not change public or event APIs.

Necessity: The change avoids repeated empty Warehouse Entry processing for every item when the table has no records. The scope is small and matches the described performance goal.

[AI-PR-REVIEW] version=1 promptVersion=2 system=github pr=10220 round=1 by=alexei-dobriansky at=2026-08-13T10:58:45Z lastSha=df53f2cd5e65b570496690131d349fb83dfd65fe reviewKey=37b7266d05d48aa38009baf56f919a7534aedca05b028b2c36a4cc2a6a94eaa4 suggestions=none