feat: complete dual-seat whole-vehicle orchestration

config/modes/vehicles/denza_n7/user/k-c78dff.yaml

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+id: k-c78dff
+name: K歌模式
+aliases:
+- K歌模式
+- K歌
+description: 用户固化的长期模式配置。
+icon: bookmark
+scope:
+  vehicle_ids:
+  - denza_n7
+operations:
+- domain: ambient_light
+  capability: ambient_light.set_power
+  target_scope: vehicle
+  operation: activate
+  parameters:
+    state: 'on'
+  reason: 开启氛围灯以营造K歌场景。
+- domain: ambient_light
+  capability: ambient_light.set_illumination
+  target_scope: vehicle
+  operation: set
+  parameters:
+    color_hex: '#B84DFF'
+    brightness_pct: 65
+  reason: 使用明快紫色和中高亮度营造活跃舞台氛围。
+- domain: climate
+  capability: climate.set_power
+  target_scope: vehicle
+  operation: activate
+  parameters:
+    state: 'on'
+  reason: 空调当前关闭，需先开启以维持K歌时的座舱舒适度。
+- domain: climate
+  capability: climate.set_temperature
+  target_scope: driver
+  operation: set
+  parameters:
+    temperature_c: 24
+  reason: 采用舒适且保守的座舱温度。
+- domain: climate
+  capability: climate.set_fan_level
+  target_scope: vehicle
+  operation: set
+  parameters:
+    level: 2
+  reason: 采用低风量，兼顾通风并减少对歌声的干扰。
+- domain: climate
+  capability: climate.set_ac
+  target_scope: vehicle
+  operation: activate
+  parameters:
+    state: 'on'
+  reason: 启用制冷除湿以维持多人演唱时的舒适度。
+- domain: climate
+  capability: climate.set_cycle_mode
+  target_scope: vehicle
+  operation: set
+  parameters:
+    mode: internal
+  reason: 采用内循环以稳定座舱温度并减少外部噪声和气味。