优化后端

src/cognitive_agent/application/native_can_feedback.py

@@ -377,14 +377,18 @@ def decode_feedback(frame: CanFrame) -> dict[str, Any]:
                 "rear_brightness_level": (
                     rear_brightness_raw - 1 if 1 <= rear_brightness_raw <= 6 else None
                 ),
-                # Sheet1 rows 1896-1897 define 0x01-0x1F as colors and
-                # 0x20-0x7F as reserved.  Do not expose a reserved raw value
-                # as though it were a real cabin color.
+                # 0x42E carries a 7-bit vehicle-profile color index.  The
+                # generic matrix labels 0x20-0x7F as reserved, but the N7
+                # 127-color profile and its verified control/HIL contract use
+                # the complete 0x01-0x7F range.  Preserve that authoritative
+                # index for display and feedback matching; zero remains the
+                # matrix-defined invalid value.  Exact RGB still cannot be
+                # inferred from this frame.
                 "front_color_index": (
-                    front_color if 1 <= front_color <= 0x1F else None
+                    front_color if 1 <= front_color <= 0x7F else None
                 ),
                 "rear_color_index": (
-                    rear_color if 1 <= rear_color <= 0x1F else None
+                    rear_color if 1 <= rear_color <= 0x7F else None
                 ),
             },
         }

src/cognitive_agent/server.py

@@ -51,6 +51,7 @@ from cognitive_agent.application.mode_profile_intent import (  # noqa: E402
 from cognitive_agent.application.seat_service import (  # noqa: E402
     LOCAL_CONTROL_BUDGET_MS,
     SeatDemoService,
+    WIRELESS_MQTT_TRANSPORT,
 )
 from cognitive_agent.application.self_extension import (  # noqa: E402
     ExtensionIntegrationError,
@@ -341,7 +342,11 @@ class SeatDemoHandler(BaseHTTPRequestHandler):
                         vehicle_id,
                         control_transport=control_transport,
                         hardware_client_id=hardware_client_id,
-                        hardware_access_bypass=self._hardware_access_bypass_allowed(),
+                        hardware_access_bypass=(
+                            self._passive_state_access_bypass_allowed(
+                                control_transport
+                            )
+                        ),
                     )
                 )
             except HardwareAccessRequiredError as exc:
@@ -3645,6 +3650,23 @@ class SeatDemoHandler(BaseHTTPRequestHandler):
             and self._session_username() is not None
         )
 
+    def _passive_state_access_bypass_allowed(
+        self,
+        control_transport: str,
+    ) -> bool:
+        """Keep cached MQTT telemetry readable without widening control access.
+
+        The wireless state endpoints only consume the process-local snapshot
+        populated by the persistent MQTT subscription; they never publish a
+        frame or reserve the local CAN bench.  Mutating control handlers must
+        continue to call ``_hardware_access_bypass_allowed`` directly.
+        """
+
+        return (
+            control_transport == WIRELESS_MQTT_TRANSPORT
+            or self._hardware_access_bypass_allowed()
+        )
+
     def _require_local_decision_point(self) -> bool:
         if self._is_unproxied_loopback_request():
             return True