v2.26.0: fix SSE fanout crash and branded logo FOUC

- Fix SSE fanout thread AttributeError when source queue is None during
  interpreter shutdown by snapshotting to local variable with null guard
- Fix branded "i" logo rendering oversized on first page load (FOUC) by
  adding inline width/height to SVG elements across 10 templates
- Bump version to 2.26.0 in config.py, pyproject.toml, and CHANGELOG.md

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

utils/wifi/__init__.py

@@ -8,25 +8,18 @@ Provides unified WiFi scanning with dual-mode architecture:
 Also includes channel analysis, hidden SSID correlation, and network aggregation.
 """
 
-from .models import (
-    WiFiObservation,
-    WiFiAccessPoint,
-    WiFiClient,
-    WiFiProbeRequest,
-    WiFiScanResult,
-    WiFiScanStatus,
-    WiFiCapabilities,
-    ChannelStats,
-    ChannelRecommendation,
+from .channel_analyzer import (
+    ChannelAnalyzer,
+    analyze_channels,
 )
-
-from .scanner import (
-    UnifiedWiFiScanner,
-    get_wifi_scanner,
-    reset_wifi_scanner,
-)
-
 from .constants import (
+    AUTH_EAP,
+    # Auth
+    AUTH_OPEN,
+    AUTH_OWE,
+    AUTH_PSK,
+    AUTH_SAE,
+    AUTH_UNKNOWN,
     # Bands
     BAND_2_4_GHZ,
     BAND_5_GHZ,
@@ -36,64 +29,67 @@ from .constants import (
     CHANNELS_2_4_GHZ,
     CHANNELS_5_GHZ,
     CHANNELS_6_GHZ,
-    NON_OVERLAPPING_2_4_GHZ,
-    NON_OVERLAPPING_5_GHZ,
-    # Security
-    SECURITY_OPEN,
-    SECURITY_WEP,
-    SECURITY_WPA,
-    SECURITY_WPA2,
-    SECURITY_WPA3,
-    SECURITY_WPA_WPA2,
-    SECURITY_WPA2_WPA3,
-    SECURITY_ENTERPRISE,
-    SECURITY_UNKNOWN,
-    # Cipher
-    CIPHER_NONE,
-    CIPHER_WEP,
-    CIPHER_TKIP,
     CIPHER_CCMP,
     CIPHER_GCMP,
+    # Cipher
+    CIPHER_NONE,
+    CIPHER_TKIP,
     CIPHER_UNKNOWN,
-    # Auth
-    AUTH_OPEN,
-    AUTH_PSK,
-    AUTH_SAE,
-    AUTH_EAP,
-    AUTH_OWE,
-    AUTH_UNKNOWN,
-    # Signal bands
-    SIGNAL_STRONG,
-    SIGNAL_MEDIUM,
-    SIGNAL_WEAK,
-    SIGNAL_VERY_WEAK,
-    SIGNAL_UNKNOWN,
+    CIPHER_WEP,
+    NON_OVERLAPPING_2_4_GHZ,
+    NON_OVERLAPPING_5_GHZ,
+    PROXIMITY_FAR,
     # Proximity bands (consistent with Bluetooth)
     PROXIMITY_IMMEDIATE,
     PROXIMITY_NEAR,
-    PROXIMITY_FAR,
     PROXIMITY_UNKNOWN,
+    SCAN_MODE_DEEP,
     # Scan modes
     SCAN_MODE_QUICK,
-    SCAN_MODE_DEEP,
+    SECURITY_ENTERPRISE,
+    # Security
+    SECURITY_OPEN,
+    SECURITY_UNKNOWN,
+    SECURITY_WEP,
+    SECURITY_WPA,
+    SECURITY_WPA2,
+    SECURITY_WPA2_WPA3,
+    SECURITY_WPA3,
+    SECURITY_WPA_WPA2,
+    SIGNAL_MEDIUM,
+    # Signal bands
+    SIGNAL_STRONG,
+    SIGNAL_UNKNOWN,
+    SIGNAL_VERY_WEAK,
+    SIGNAL_WEAK,
     # Helper functions
     get_band_from_channel,
     get_band_from_frequency,
     get_channel_from_frequency,
-    get_signal_band,
     get_proximity_band,
+    get_signal_band,
     get_vendor_from_mac,
 )
-
-from .channel_analyzer import (
-    ChannelAnalyzer,
-    analyze_channels,
-)
-
 from .hidden_ssid import (
     HiddenSSIDCorrelator,
     get_hidden_correlator,
 )
+from .models import (
+    ChannelRecommendation,
+    ChannelStats,
+    WiFiAccessPoint,
+    WiFiCapabilities,
+    WiFiClient,
+    WiFiObservation,
+    WiFiProbeRequest,
+    WiFiScanResult,
+    WiFiScanStatus,
+)
+from .scanner import (
+    UnifiedWiFiScanner,
+    get_wifi_scanner,
+    reset_wifi_scanner,
+)
 
 __all__ = [
     # Main scanner