Add general Radar Zone Occupancy sensor

[bharvey88]

Version: 26.3.2.1

What does this implement/fix?

Adds a consolidated "Radar Zone Occupancy" binary sensor that aggregates the three individual zone occupancy sensors (Zone 1, Zone 2, Zone 3) into a single unified sensor. This makes it easier to write automations that simply check "is there a person in this room?" without referencing individual zone sensors.

Mirrors the same addition made in MSR-2 (ApolloAutomation/MSR-2#47).

Types of changes

• Bugfix (fixed change that fixes an issue)
• New feature (thanks!)
• Breaking change (repair/feature that breaks existing functionality)
• Dependency Update - Does not publish
• Other - Does not publish
• Website of github readme file update - Does not publish
• Github workflows - Does not publish

Checklist / Checklijst:

• The code change has been tested and works locally
• The code change has not yet been tested

If user-visible functionality or configuration variables are added/modified:

• Added/updated documentation for the web page

Summary by CodeRabbit

• New Features
  • Added Radar Zone Occupancy sensor that aggregates occupancy detection across all radar zones, providing a unified occupancy state for streamlined automation and monitoring.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: abf85505-bcbc-4cdd-8783-221c8358c285

📥 Commits

Reviewing files that changed from the base of the PR and between 6b34d27 and d0f92b2.

📒 Files selected for processing (1)

• Integrations/ESPHome/Core.yaml

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Walkthrough

Added a new template binary_sensor called "Radar Zone Occupancy" to the ESPHome configuration that aggregates occupancy data from three radar zone sensors using logical OR. The sensor includes device classification, icon assignment, and lambda logic combining existing sensors, with minor formatting adjustments to pin configuration.

Changes

Cohort / File(s)	Summary
ESPHome Configuration Integrations/ESPHome/Core.yaml	Added new template binary_sensor radar_zone_occupancy that aggregates occupancy states from Radar Zone 1/2/3 sensors using lambda OR logic. Includes device class (occupancy), icon (mdi:motion-sensor), and minor GPIO pin formatting adjustment.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 Three zones now speak with one voice clear,
A motion-sensing ear to hear,
Where occupancy aggregates with care,
Rabbits approve of sensors fair! 🎯

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title accurately summarizes the main change: adding a consolidated Radar Zone Occupancy sensor that aggregates three zone occupancy sensors.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch add-radar-zone-occupancy

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[bharvey88]

confirmed working with discord user hobbyboy merging to beta to test further