feat(report): add Purchase invoice info report

New Script Report grouping purchase-type Purchase Invoices by Act Type,
showing counterparty (ФИО/company/country), VOEN/FIN, and amount.
Includes a link column to the source Purchase Invoice and optional
date-range filters; formula-editor friendly (no total row).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

taxes_az/taxes_az/report/purchase_invoice_info_report/purchase_invoice_info_report.js

@@ -0,0 +1,19 @@
+// Copyright (c) 2026, Company and contributors
+// For license information, please see license.txt
+
+frappe.query_reports["Purchase invoice info report"] = {
+	"filters": [
+		{
+			"fieldname": "from_date",
+			"label": __("From Date"),
+			"fieldtype": "Date",
+			"default": frappe.datetime.add_months(frappe.datetime.get_today(), -1)
+		},
+		{
+			"fieldname": "to_date",
+			"label": __("To Date"),
+			"fieldtype": "Date",
+			"default": frappe.datetime.get_today()
+		}
+	]
+};

taxes_az/taxes_az/report/purchase_invoice_info_report/purchase_invoice_info_report.json

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+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2026-06-23 12:00:00",
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "letterhead": null,
+ "modified": "2026-06-23 13:00:00",
+ "modified_by": "Administrator",
+ "module": "Taxes Az",
+ "name": "Purchase invoice info report",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Purchase Invoice",
+ "report_name": "Purchase invoice info report",
+ "report_type": "Script Report",
+ "roles": [],
+ "timeout": 0
+}

taxes_az/taxes_az/report/purchase_invoice_info_report/purchase_invoice_info_report.py

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+# Copyright (c) 2026, Company and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe import _
+
+
+def execute(filters=None):
+	"""Main function for report execution"""
+	columns = get_columns(filters)
+	data = get_data(filters)
+
+	return columns, data
+
+
+def get_columns(filters=None):
+	"""Get report columns definition"""
+	return [
+		{
+			"label": _("Purchase Invoice"),
+			"fieldname": "purchase_invoice",
+			"fieldtype": "Link",
+			"options": "Purchase Invoice",
+			"width": 160
+		},
+		{
+			"label": _("Act Type"),
+			"fieldname": "act_type",
+			"fieldtype": "Data",
+			"width": 120
+		},
+		{
+			"label": _("Counterparty"),
+			"fieldname": "counterparty",
+			"fieldtype": "Data",
+			"width": 240
+		},
+		{
+			"label": _("VOEN"),
+			"fieldname": "voen",
+			"fieldtype": "Data",
+			"width": 130
+		},
+		{
+			"label": _("FIN"),
+			"fieldname": "fin",
+			"fieldtype": "Data",
+			"width": 130
+		},
+		{
+			"label": _("Amount"),
+			"fieldname": "amount",
+			"fieldtype": "Currency",
+			"width": 140
+		}
+	]
+
+
+def get_data(filters=None):
+	"""Get report data"""
+	filters = filters or {}
+	conditions = ""
+
+	if filters.get("from_date"):
+		conditions += " AND pi.posting_date >= %(from_date)s"
+
+	if filters.get("to_date"):
+		conditions += " AND pi.posting_date <= %(to_date)s"
+
+	rows = frappe.db.sql(f"""
+		SELECT
+			pi.name AS purchase_invoice,
+			pi.act_type,
+			pi.agricultural_country,
+			pi.supplier_name,
+			pi.grand_total,
+			sup.supplier_type,
+			sup.tax_id,
+			sup.fin
+		FROM
+			`tabPurchase Invoice` pi
+		LEFT JOIN
+			`tabSupplier` sup ON sup.name = pi.supplier
+		WHERE
+			pi.docstatus = 1
+			AND pi.purchase_type = 1
+			{conditions}
+		ORDER BY
+			pi.posting_date DESC, pi.name
+	""", filters, as_dict=1)
+
+	data = []
+	for r in rows:
+		# Column 2-4 depend on the act type / supplier type:
+		#   Import          -> counterparty = country, VOEN/FIN empty
+		#   Individual       -> counterparty = full name (ФИО), FIN filled
+		#   Company (MMC)    -> counterparty = company name, VOEN filled
+		if r.act_type == "Import":
+			counterparty = r.agricultural_country or ""
+			voen = ""
+			fin = ""
+		elif r.supplier_type == "Individual":
+			counterparty = r.supplier_name or ""
+			voen = ""
+			fin = r.fin or ""
+		else:
+			counterparty = r.supplier_name or ""
+			voen = r.tax_id or ""
+			fin = ""
+
+		data.append({
+			"purchase_invoice": r.purchase_invoice,
+			"act_type": r.act_type or "",
+			"counterparty": counterparty,
+			"voen": voen,
+			"fin": fin,
+			"amount": r.grand_total or 0
+		})
+
+	return data