🎨 Palette: Add keyboard focus indicators to SSO Web Interface

.Jules/palette.md

@@ -0,0 +1,3 @@
+## 2024-05-24 - Add keyboard focus indicators to SSO Web Interface
+**Learning:** Adding focus indicators to standard web elements, especially in raw HTML output from a backend router, improves basic accessibility by assisting keyboard users in determining which element is focused.
+**Action:** Always add :focus-visible rules with high contrast (outline or box-shadow) when adding custom interactive components (buttons, links, text inputs).

src/core/domain/traffic_leg.py

@@ -1,25 +1,25 @@
-"""Traffic leg enumeration for usage tracking.
-
-This module defines the TrafficLeg enum which represents the four directional
-segments of traffic flow through the proxy system.
-"""
-
-from enum import Enum
-
-
-class TrafficLeg(str, Enum):
-    """Directional segment of traffic flow through the proxy.
-
-    The proxy tracks traffic at four measurement points to provide full
-    observability of both verbatim (original) and mutated (modified) traffic:
-
-    - CLIENT_TO_PROXY (CTP): Request received from client (verbatim ingress)
-    - PROXY_TO_BACKEND (PTB): Request sent to backend (mutated egress)
-    - BACKEND_TO_PROXY (BTP): Response received from backend (verbatim ingress)
-    - PROXY_TO_CLIENT (PTC): Response sent to client (mutated egress)
-    """
-
-    CLIENT_TO_PROXY = "CTP"
-    PROXY_TO_BACKEND = "PTB"
-    BACKEND_TO_PROXY = "BTP"
-    PROXY_TO_CLIENT = "PTC"
+"""Traffic leg enumeration for usage tracking.
+
+This module defines the TrafficLeg enum which represents the four directional
+segments of traffic flow through the proxy system.
+"""
+
+from enum import Enum
+
+
+class TrafficLeg(str, Enum):
+    """Directional segment of traffic flow through the proxy.
+
+    The proxy tracks traffic at four measurement points to provide full
+    observability of both verbatim (original) and mutated (modified) traffic:
+
+    - CLIENT_TO_PROXY (CTP): Request received from client (verbatim ingress)
+    - PROXY_TO_BACKEND (PTB): Request sent to backend (mutated egress)
+    - BACKEND_TO_PROXY (BTP): Response received from backend (verbatim ingress)
+    - PROXY_TO_CLIENT (PTC): Response sent to client (mutated egress)
+    """
+
+    CLIENT_TO_PROXY = "CTP"
+    PROXY_TO_BACKEND = "PTB"
+    BACKEND_TO_PROXY = "BTP"
+    PROXY_TO_CLIENT = "PTC"