feat(accounting): edit finalized document cost centres

backend/tests/outgoingDocumentCostCentres.test.ts

@@ -0,0 +1,33 @@
+import assert from "node:assert/strict"
+import test from "node:test"
+import { applyRowCostCentreAssignments } from "../src/modules/outgoing-document-cost-centres.service"
+import { mcpToolMap } from "../src/mcp/registry"
+
+test("changes only requested position cost centres", () => {
+    const rows = [
+        { id: "row-1", description: "Montage", price: 100, costCentre: "old-1" },
+        { id: "row-2", description: "Material", price: 50, costCentre: "old-2" },
+    ]
+
+    assert.deepEqual(applyRowCostCentreAssignments(rows, [
+        { rowId: "row-1", costcentre: "new-1" },
+    ]), [
+        { id: "row-1", description: "Montage", price: 100, costCentre: "new-1" },
+        rows[1],
+    ])
+})
+
+test("rejects assignments for unknown document positions", () => {
+    assert.throws(
+        () => applyRowCostCentreAssignments([{ id: "row-1" }], [{ rowId: "missing", costcentre: null }]),
+        /Position missing.*nicht gefunden/,
+    )
+})
+
+test("registers a dedicated finalized-document cost centre tool", () => {
+    const tool = mcpToolMap.get("accounting.outgoing_documents.cost_centres.update")
+
+    assert.deepEqual(tool?.requiredPermissions, ["accounting.outgoing_documents.write"])
+    assert.deepEqual(tool?.inputSchema.required, ["id"])
+    assert.ok(tool?.inputSchema.anyOf)
+})