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/parsers/__init__.py

@@ -4,11 +4,11 @@ WiFi scan output parsers.
 Each parser converts tool-specific output into WiFiObservation objects.
 """
 
+from .airodump import parse_airodump_csv
 from .airport import parse_airport_scan
-from .nmcli import parse_nmcli_scan
 from .iw import parse_iw_scan
 from .iwlist import parse_iwlist_scan
-from .airodump import parse_airodump_csv
+from .nmcli import parse_nmcli_scan
 
 __all__ = [
     'parse_airport_scan',

utils/wifi/parsers/airodump.py

@@ -22,29 +22,28 @@ import io
 import logging
 import re
 from datetime import datetime
-from typing import Optional
 
-from ..models import WiFiObservation
 from ..constants import (
+    AUTH_EAP,
+    AUTH_OPEN,
+    AUTH_OWE,
+    AUTH_PSK,
+    AUTH_SAE,
+    AUTH_UNKNOWN,
+    CHANNEL_FREQUENCIES,
+    CIPHER_CCMP,
+    CIPHER_TKIP,
+    CIPHER_UNKNOWN,
+    CIPHER_WEP,
     SECURITY_OPEN,
+    SECURITY_UNKNOWN,
     SECURITY_WEP,
     SECURITY_WPA,
     SECURITY_WPA2,
     SECURITY_WPA3,
     SECURITY_WPA_WPA2,
-    SECURITY_UNKNOWN,
-    CIPHER_CCMP,
-    CIPHER_TKIP,
-    CIPHER_WEP,
-    CIPHER_UNKNOWN,
-    AUTH_PSK,
-    AUTH_SAE,
-    AUTH_EAP,
-    AUTH_OWE,
-    AUTH_OPEN,
-    AUTH_UNKNOWN,
-    CHANNEL_FREQUENCIES,
 )
+from ..models import WiFiObservation
 
 logger = logging.getLogger(__name__)
 
@@ -63,7 +62,7 @@ def parse_airodump_csv(filepath: str) -> tuple[list[WiFiObservation], list[dict]
     clients = []
 
     try:
-        with open(filepath, 'r', encoding='utf-8', errors='replace') as f:
+        with open(filepath, encoding='utf-8', errors='replace') as f:
             content = f.read()
 
         # airodump-ng separates sections with blank lines

utils/wifi/parsers/airport.py

@@ -12,33 +12,31 @@ from __future__ import annotations
 import logging
 import re
 from datetime import datetime
-from typing import Optional
 
-from ..models import WiFiObservation
 from ..constants import (
+    AUTH_EAP,
+    AUTH_OPEN,
+    AUTH_PSK,
+    AUTH_SAE,
+    AUTH_UNKNOWN,
+    CHANNEL_FREQUENCIES,
+    CIPHER_CCMP,
+    CIPHER_NONE,
+    CIPHER_TKIP,
+    CIPHER_UNKNOWN,
+    CIPHER_WEP,
     SECURITY_OPEN,
+    SECURITY_UNKNOWN,
     SECURITY_WEP,
     SECURITY_WPA,
     SECURITY_WPA2,
+    SECURITY_WPA2_WPA3,
     SECURITY_WPA3,
     SECURITY_WPA_WPA2,
-    SECURITY_WPA2_WPA3,
-    SECURITY_UNKNOWN,
-    CIPHER_CCMP,
-    CIPHER_TKIP,
-    CIPHER_WEP,
-    CIPHER_NONE,
-    CIPHER_UNKNOWN,
-    AUTH_PSK,
-    AUTH_SAE,
-    AUTH_EAP,
-    AUTH_OPEN,
-    AUTH_UNKNOWN,
     WIDTH_20_MHZ,
     WIDTH_40_MHZ,
-    get_band_from_channel,
-    CHANNEL_FREQUENCIES,
 )
+from ..models import WiFiObservation
 
 logger = logging.getLogger(__name__)
 
@@ -68,7 +66,7 @@ def parse_airport_scan(output: str) -> list[WiFiObservation]:
     return observations
 
 
-def _parse_airport_line(line: str) -> Optional[WiFiObservation]:
+def _parse_airport_line(line: str) -> WiFiObservation | None:
     """Parse a single line of airport output."""
     # airport output is space-aligned, need careful parsing
     # Format: SSID (variable width) BSSID RSSI CHANNEL HT CC SECURITY
@@ -95,10 +93,8 @@ def _parse_airport_line(line: str) -> Optional[WiFiObservation]:
         ssid = line[:bssid_pos].strip()
 
         # Handle hidden network indicator
-        is_hidden = False
         if ssid == '--' or not ssid:
             ssid = None
-            is_hidden = True
 
         # Parse remainder after BSSID
         remainder = line[bssid_match.end():].strip()

utils/wifi/parsers/iw.py

@@ -24,35 +24,32 @@ from __future__ import annotations
 import logging
 import re
 from datetime import datetime
-from typing import Optional
 
-from ..models import WiFiObservation
 from ..constants import (
+    AUTH_EAP,
+    AUTH_OPEN,
+    AUTH_OWE,
+    AUTH_PSK,
+    AUTH_SAE,
+    AUTH_UNKNOWN,
+    CIPHER_CCMP,
+    CIPHER_GCMP,
+    CIPHER_TKIP,
+    CIPHER_UNKNOWN,
+    CIPHER_WEP,
     SECURITY_OPEN,
     SECURITY_WEP,
     SECURITY_WPA,
     SECURITY_WPA2,
     SECURITY_WPA3,
     SECURITY_WPA_WPA2,
-    SECURITY_WPA2_WPA3,
-    SECURITY_UNKNOWN,
-    CIPHER_CCMP,
-    CIPHER_TKIP,
-    CIPHER_GCMP,
-    CIPHER_WEP,
-    CIPHER_UNKNOWN,
-    AUTH_PSK,
-    AUTH_SAE,
-    AUTH_EAP,
-    AUTH_OWE,
-    AUTH_OPEN,
-    AUTH_UNKNOWN,
     WIDTH_20_MHZ,
     WIDTH_40_MHZ,
     WIDTH_80_MHZ,
     WIDTH_160_MHZ,
     get_channel_from_frequency,
 )
+from ..models import WiFiObservation
 
 logger = logging.getLogger(__name__)
 
@@ -90,7 +87,7 @@ def parse_iw_scan(output: str) -> list[WiFiObservation]:
     return observations
 
 
-def _parse_iw_block(lines: list[str]) -> Optional[WiFiObservation]:
+def _parse_iw_block(lines: list[str]) -> WiFiObservation | None:
     """Parse a single BSS block from iw output."""
     try:
         # First line: BSS 00:11:22:33:44:55(on wlan0) -- associated

utils/wifi/parsers/iwlist.py

@@ -25,27 +25,25 @@ from __future__ import annotations
 import logging
 import re
 from datetime import datetime
-from typing import Optional
 
-from ..models import WiFiObservation
 from ..constants import (
+    AUTH_EAP,
+    AUTH_OPEN,
+    AUTH_PSK,
+    AUTH_UNKNOWN,
+    CHANNEL_FREQUENCIES,
+    CIPHER_CCMP,
+    CIPHER_TKIP,
+    CIPHER_UNKNOWN,
+    CIPHER_WEP,
     SECURITY_OPEN,
     SECURITY_WEP,
     SECURITY_WPA,
     SECURITY_WPA2,
     SECURITY_WPA_WPA2,
-    SECURITY_UNKNOWN,
-    CIPHER_CCMP,
-    CIPHER_TKIP,
-    CIPHER_WEP,
-    CIPHER_UNKNOWN,
-    AUTH_PSK,
-    AUTH_EAP,
-    AUTH_OPEN,
-    AUTH_UNKNOWN,
     get_channel_from_frequency,
-    CHANNEL_FREQUENCIES,
 )
+from ..models import WiFiObservation
 
 logger = logging.getLogger(__name__)
 
@@ -83,7 +81,7 @@ def parse_iwlist_scan(output: str) -> list[WiFiObservation]:
     return observations
 
 
-def _parse_iwlist_block(lines: list[str]) -> Optional[WiFiObservation]:
+def _parse_iwlist_block(lines: list[str]) -> WiFiObservation | None:
     """Parse a single Cell block from iwlist output."""
     try:
         # Extract BSSID from first line

utils/wifi/parsers/nmcli.py

@@ -11,30 +11,28 @@ from __future__ import annotations
 import logging
 import re
 from datetime import datetime
-from typing import Optional
 
-from ..models import WiFiObservation
 from ..constants import (
-    SECURITY_OPEN,
-    SECURITY_WEP,
-    SECURITY_WPA,
-    SECURITY_WPA2,
-    SECURITY_WPA3,
-    SECURITY_WPA_WPA2,
-    SECURITY_WPA2_WPA3,
-    SECURITY_ENTERPRISE,
-    SECURITY_UNKNOWN,
+    AUTH_EAP,
+    AUTH_OPEN,
+    AUTH_PSK,
+    AUTH_SAE,
+    AUTH_UNKNOWN,
     CIPHER_CCMP,
     CIPHER_TKIP,
     CIPHER_UNKNOWN,
-    AUTH_PSK,
-    AUTH_SAE,
-    AUTH_EAP,
-    AUTH_OPEN,
-    AUTH_UNKNOWN,
+    SECURITY_ENTERPRISE,
+    SECURITY_OPEN,
+    SECURITY_UNKNOWN,
+    SECURITY_WEP,
+    SECURITY_WPA,
+    SECURITY_WPA2,
+    SECURITY_WPA2_WPA3,
+    SECURITY_WPA3,
+    SECURITY_WPA_WPA2,
     get_channel_from_frequency,
-    get_band_from_frequency,
 )
+from ..models import WiFiObservation
 
 logger = logging.getLogger(__name__)
 
@@ -62,7 +60,7 @@ def parse_nmcli_scan(output: str) -> list[WiFiObservation]:
     return observations
 
 
-def _parse_nmcli_line(line: str) -> Optional[WiFiObservation]:
+def _parse_nmcli_line(line: str) -> WiFiObservation | None:
     """Parse a single line of nmcli terse output."""
     try:
         # nmcli terse format uses : as delimiter but escapes colons in values with \:
@@ -188,7 +186,7 @@ def _parse_nmcli_security(security_str: str) -> tuple[str, str, str]:
     cipher = CIPHER_UNKNOWN
     if security in (SECURITY_WPA2, SECURITY_WPA3, SECURITY_WPA2_WPA3, SECURITY_ENTERPRISE):
         cipher = CIPHER_CCMP
-    elif security == SECURITY_WPA or security == SECURITY_WPA_WPA2:
+    elif security in (SECURITY_WPA, SECURITY_WPA_WPA2):
         cipher = CIPHER_TKIP  # Often TKIP for mixed mode
 
     # Determine auth