fix: telemt -v -> --version, CSV header skip in bot stats

gotelegram-bot/bot.py

@@ -389,7 +389,7 @@ async def check_service_status(service: str) -> bool:
 
 async def get_telemt_version() -> str:
     """Get telemt version."""
-    code, stdout, _ = await sh("telemt", "-v")
+    code, stdout, _ = await sh("telemt", "--version")
     if code == 0:
         return stdout.strip().split()[-1] if stdout else "unknown"
     return "unknown"
@@ -699,18 +699,21 @@ async def get_traffic_stats(user_id: Optional[int] = None) -> str:
     except Exception:
         return f"📊 <b>{_t(user_id, 'stats_title', 'Statistics')}</b>\n\n<i>{_t(user_id, 'stats_unavailable', 'Data unavailable. Make sure stats module is enabled.')}</i>"
 
-    # Read history
+    # Read history (skip header and non-numeric rows)
     history = []
     try:
         with open(history_file, "r") as f:
             reader = csv.reader(f)
             for row in reader:
                 if len(row) >= 3:
+                    try:
                         history.append({
                             "ts": int(row[0]),
                             "proxy": int(row[1]),
                             "site": int(row[2]),
                         })
+                    except (ValueError, TypeError):
+                        continue  # skip header or malformed rows
     except Exception:
         pass