Rename report file and auto-delete previous reports

- Rename output to "YYYY-MM-DD HH-MM-SS Agenda + Požadavky.xlsx"
- Delete old reports before generating new one

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

40 agenda a požadavky/871 test.py

@@ -40,8 +40,14 @@ DB_CONFIG = {
 
 EXPORT_DIR = Path(r"z:\Dropbox\Ordinace\Reporty")
 EXPORT_DIR.mkdir(exist_ok=True, parents=True)
-timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+
-xlsx_path = EXPORT_DIR / f"{timestamp} Agenda + Pozadavky (Merged).xlsx"
+# Delete previous reports
+for old in EXPORT_DIR.glob("* Agenda + Požadavky.xlsx"):
+    old.unlink()
+    print(f"🗑️ Deleted old report: {old.name}")
+
+timestamp = datetime.now().strftime("%Y-%m-%d %H-%M-%S")
+xlsx_path = EXPORT_DIR / f"{timestamp} Agenda + Požadavky.xlsx"
 
 # ==================== LOAD TOKEN ====================
 TOKEN_PATH = Path("token.txt")