Document first Azure AI evaluation runs and refine analysis prompt

samples/invoices-rejected-report.json

@@ -0,0 +1,12 @@
+{
+  "sourceBlob": "0c684ef3a1844dfaad0974eb8791ba29-invoices-invalid-structure.csv",
+  "checkedAtUtc": "2026-09-08T07:58:14.9845461+00:00",
+  "status": "Rejected",
+  "rows": [],
+  "fileErrors": [
+    "Zeile 3: Erwartet werden vier Spalten ohne Anf\u00FChrungszeichen."
+  ],
+  "totalCount": 0,
+  "validCount": 0,
+  "invalidCount": 0
+}

samples/invoices-report.json

@@ -0,0 +1,51 @@
+{
+  "sourceBlob": "f4a6bfa50f1f4f6bbedb3816e41c0172-invoices.csv",
+  "checkedAtUtc": "2026-09-08T07:58:14.9847538+00:00",
+  "status": "Completed",
+  "rows": [
+    {
+      "lineNumber": 2,
+      "invoiceId": "INV-001",
+      "isValid": true,
+      "errors": []
+    },
+    {
+      "lineNumber": 3,
+      "invoiceId": "INV-002",
+      "isValid": false,
+      "errors": [
+        "Kundennummer fehlt."
+      ]
+    },
+    {
+      "lineNumber": 4,
+      "invoiceId": "INV-003",
+      "isValid": false,
+      "errors": [
+        "Betrag ist keine g\u00FCltige Zahl."
+      ]
+    },
+    {
+      "lineNumber": 5,
+      "invoiceId": "INV-004",
+      "isValid": false,
+      "errors": [
+        "Betrag muss gr\u00F6\u00DFer als null sein."
+      ]
+    },
+    {
+      "lineNumber": 6,
+      "invoiceId": "",
+      "isValid": false,
+      "errors": [
+        "Rechnungsnummer fehlt.",
+        "Kundennummer fehlt.",
+        "Betrag muss gr\u00F6\u00DFer als null sein."
+      ]
+    }
+  ],
+  "fileErrors": [],
+  "totalCount": 5,
+  "validCount": 1,
+  "invalidCount": 4
+}