Use secondary thermostat address for HVAC JSON

[devprbtt]

Motivation

• Recent removal of hard-coded zone suffixes broke Savant UI feedback for zone sliders and setpoints when thermostat IDs > 1, and the UI expects zone-1 bindings for controls to render properly.
• The intent is to preserve UI/zone bindings while still allowing commands to target arbitrary device IDs.

Description

• Restored zone-1 state center bindings (state_center_binding names with trailing _1) so the Savant UI slider and per-zone feedback work correctly.
• Added a second address component and action argument ThermostatAddress2 to carry the actual device id, and left ThermostatAddress as the UI zone identifier (note: use 1 for the UI zone).
• Updated all HVAC actions to send JSON commands using ThermostatAddress2 in the id field while preserving optimistic updates and HasReceivedCommand behavior.
• Bumped profile revision to 1.3 and added notes documenting the two-address usage and the rationale.

Testing

• No automated tests were executed for this profile-only change.
• Changes were applied to the profile XML and syntax inspected locally; no runtime integration tests were run.

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Codex Task