Refactor production and stock tests to remove UOM dependency

- Updated production.spec.ts, stock-adjustments.spec.ts, and stock-transfers.spec.ts to eliminate UOM references in API seeder and test cases.
- Adjusted ApiSeeder methods to remove UOM parameters from stock receiving and production template creation.
- Revised documentation to reflect changes in UOM handling, emphasizing that stock is counted in base UOM only.
- Introduced new enums for MeasureUnit and StageQtyUnit to clarify content size and stage input quantities.
- Implemented ItemContent service to validate and normalize content sizes.
- Updated smoke tests to validate production stage inputs expressed in content units, ensuring correct consumption calculations.
- Modified frontend UOM label handling to reflect the removal of per-line UOMs in document lines.

Testing/e2e/specs/chained-flow.spec.ts

@@ -1,5 +1,5 @@
 import { test, expect, APIRequestContext } from "@playwright/test"
-import { ApiSeeder, newApiContext, Warehouse, Item, Uom, Vendor } from "../support/api"
+import { ApiSeeder, newApiContext, Warehouse, Item, Vendor } from "../support/api"
 import { GrnNewPage, GrnDetailPage } from "../pages/GrnPages"
 import { ProductionRunListPage, ProductionRunDetailPage } from "../pages/ProductionRunPages"
 import { StockTransferNewPage, StockTransferDetailPage } from "../pages/StockPages"
@@ -16,7 +16,6 @@ test.describe("Chained flow: GRN -> Production -> Stock Transfer", () => {
   let sourceWarehouse: Warehouse
   let destWarehouse: Warehouse
   let vendor: Vendor
-  let uom: Uom
   let rawItem: Item
   let finishedItem: Item
   let templateName: string
@@ -26,7 +25,6 @@ test.describe("Chained flow: GRN -> Production -> Stock Transfer", () => {
     seeder = new ApiSeeder(api)
     sourceWarehouse = await seeder.firstWarehouse()
     destWarehouse = await seeder.secondWarehouse()
-    uom = await seeder.firstUom()
     vendor = await seeder.createVendor("Chained Flow Vendor")
     rawItem = await seeder.createItem({ namePrefix: "Chained Raw Material" })
     finishedItem = await seeder.createItem({ namePrefix: "Chained Finished Good" })
@@ -34,7 +32,7 @@ test.describe("Chained flow: GRN -> Production -> Stock Transfer", () => {
     const template = await seeder.createSingleStageTemplate({
       rawItemId: rawItem.itemId,
       finishedItemId: finishedItem.itemId,
-      uomId: uom.uomId,
+
     })
     templateName = template.name
   })
@@ -50,7 +48,7 @@ test.describe("Chained flow: GRN -> Production -> Stock Transfer", () => {
     await grnNew.useDirectReceipt()
     await grnNew.selectVendor(vendor.name)
     await grnNew.selectWarehouse(sourceWarehouse.name)
-    await grnNew.fillFirstLine({ item: rawItem.name, uom: uom.name, qty: 100, unitCost: 20 })
+    await grnNew.fillFirstLine({ item: rawItem.name, qty: 100, unitCost: 20 })
     await grnNew.submit()
 
     await expect(page).toHaveURL(/\/dashboard\/receiving\/grn\/\d+/)