Fix blueprint input section structure to nest under blueprint key

Move input definitions from root level to be nested under the blueprint
section. Home Assistant requires input declarations to be under
blueprint.input, not at the root level.

This fixes import errors:
- "Missing input definition for adaptive_lighting_switch, led_color_entity, mode_input_select"
- "Missing input definition for sunrise_time, sunset_time, weekend_mode_boolean, adaptive_lighting_switch, max_brightness"
- "Missing input definition for toggle_time, weekend_mode_boolean"

blueprints/automation/apply_lighting_mode.yaml

@@ -2,7 +2,6 @@ blueprint:
   name: Apply Lighting Mode Settings
   description: Data-driven mode application using convention-based entity lookup
   domain: automation
-
   input:
     mode_input_select:
       name: Mode Input Select

blueprints/automation/weekend_mode_apply_settings.yaml

@@ -2,7 +2,6 @@ blueprint:
   name: Weekend Mode Apply Settings
   description: Adjust AL settings when weekend mode toggles
   domain: automation
-
   input:
     weekend_mode_boolean:
       name: Weekend Mode Boolean

blueprints/automation/weekend_mode_schedule.yaml

@@ -2,7 +2,6 @@ blueprint:
   name: Weekend Mode Schedule
   description: Auto-enable/disable weekend mode based on day of week
   domain: automation
-
   input:
     weekend_mode_boolean:
       name: Weekend Mode Boolean