add: scripts for invoice-order matching and SKU discovery

Analysis scripts to match GoMag orders with Oracle invoices by
date/client/total, then compare line items by price to discover
SKU → id_articol mappings. Generates SQL for nom_articole codmat
updates and CSV for ARTICOLE_TERTI repackaging/set mappings.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/reset_sqlite.py

@@ -0,0 +1,42 @@
+"""Reset imported orders in SQLite back to SKIPPED after Oracle deletion"""
+import sys, sqlite3
+sys.stdout.reconfigure(encoding='utf-8', errors='replace')
+
+db = sqlite3.connect(r'C:\gomag-vending\api\data\import.db')
+c = db.cursor()
+
+# Show before
+c.execute("SELECT order_number, customer_name, id_comanda, status FROM orders WHERE status = 'IMPORTED'")
+rows = c.fetchall()
+print(f"Orders to reset: {len(rows)}")
+for r in rows:
+    print(f"  {r[0]} | {r[1]} | id_comanda={r[2]} | {r[3]}")
+
+# Reset
+c.execute("""
+    UPDATE orders SET
+        status = 'SKIPPED',
+        id_comanda = NULL,
+        id_partener = NULL,
+        id_adresa_facturare = NULL,
+        id_adresa_livrare = NULL,
+        error_message = NULL,
+        factura_serie = NULL,
+        factura_numar = NULL,
+        factura_total_fara_tva = NULL,
+        factura_total_tva = NULL,
+        factura_total_cu_tva = NULL,
+        factura_data = NULL,
+        invoice_checked_at = NULL
+    WHERE status = 'IMPORTED'
+""")
+print(f"\nReset: {c.rowcount} orders → SKIPPED")
+db.commit()
+
+# Verify
+c.execute("SELECT status, COUNT(*) FROM orders GROUP BY status")
+print("\nStatus after reset:")
+for r in c.fetchall():
+    print(f"  {r[0]:20s} {r[1]}")
+
+db.close()