fix: WireGuard routing, DNS, service access, and UI improvements

- Fix CoreDNS not loading .cell zones (wrong Corefile path, now uses -conf flag)
- Fix WireGuard server address conflict (172.20.0.1/16 overlapped with Docker
  network; changed to 10.0.0.1/24 to eliminate duplicate routes)
- Add SERVERMODE=true and sysctls to WireGuard docker-compose for server mode
- Fix DNS zone file parser to handle 4-field records (name IN type value)
- Add get_dns_records() to NetworkManager; mount data/dns into API container
- Fix peer config endpoint: look up IP/key from registry, use real endpoint
- Add bulk peer statuses endpoint keyed by public_key
- Normalize snake_case API fields to camelCase in WireGuard UI
- Add port check endpoint (checks via live handshake, not unreliable TCP probe)
- Add Caddy virtual hosts for ui/calendar/files/mail .cell domains (HTTP only)
- Fix cell config domain default from cell.local to cell
- Fix Routing Network Config tab (was calling hardcoded localhost:3000)
- Fix DNS records display (record.value not record.ip)
- Move service access guide to top of Dashboard with login hints
- Add /api/routing/setup endpoint

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

api/network_manager.py

@@ -118,6 +118,20 @@ class NetworkManager(BaseServiceManager):
             logger.error(f"Failed to remove DNS record: {e}")
             return False
     
+    def get_dns_records(self, zone: str = 'cell') -> List[Dict]:
+        """Get all DNS records across all zones"""
+        all_records = []
+        try:
+            for fname in os.listdir(self.dns_zones_dir):
+                if fname.endswith('.zone'):
+                    z = fname[:-5]
+                    for rec in self._load_dns_records(z):
+                        rec['zone'] = z
+                        all_records.append(rec)
+        except Exception as e:
+            logger.error(f"Failed to list DNS records: {e}")
+        return all_records
+
     def _load_dns_records(self, zone: str) -> List[Dict]:
         """Load DNS records from zone file"""
         zone_file = os.path.join(self.dns_zones_dir, f'{zone}.zone')
@@ -131,12 +145,17 @@ class NetworkManager(BaseServiceManager):
                 lines = f.readlines()
             
             for line in lines:
-                line = line.strip()
-                if line and not line.startswith(';') and not line.startswith('$'):
-                    parts = line.split()
-                    if len(parts) >= 5:
-                        record_type = parts[3]
-                        if record_type in ('A', 'CNAME'):
+                line = line.strip().split(';')[0].strip()  # strip inline comments
+                if not line or line.startswith('$'):
+                    continue
+                parts = line.split()
+                # Support both: name IN type value (4 parts)
+                #           and name TTL IN type value (5 parts)
+                if len(parts) == 4 and parts[1] in ('IN',) and parts[2] in ('A', 'CNAME', 'MX', 'TXT'):
+                    records.append({'name': parts[0], 'ttl': '300', 'type': parts[2], 'value': parts[3]})
+                elif len(parts) >= 5:
+                    record_type = parts[3]
+                    if record_type in ('A', 'CNAME'):
                             records.append({
                                 'name': parts[0],
                                 'ttl': parts[1],