Fix NVMe temperature parsing bug for values > 99°C

Replace digits[:2] truncation with regex extraction of complete number.
Previously "123°C" would be parsed as 12 instead of 123.

Resolves #8

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

hwmonDaemon.py

@@ -2574,10 +2574,10 @@ class SystemHealthMonitor:
                                 temp_str = line.split(':')[1].strip() if ':' in line else line.strip()
                                 logger.debug(f"Raw temperature string: {temp_str}")
                                 
-                                # Extract first temperature value more safely
-                                digits = ''.join(c for c in temp_str if c.isdigit())
-                                if len(digits) >= 2:
-                                    temp_value = int(digits[:2])
+                                # Extract the first complete number from temperature string
+                                temp_match = re.search(r'(\d+)', temp_str)
+                                if temp_match:
+                                    temp_value = int(temp_match.group(1))
                                     logger.debug(f"Parsed temperature value: {temp_value}")
                                     
                                     # Set both temperature fields