Make CO2 auto calibration toggle work at runtime

[bharvey88]

Version: 26.6.10.1

What does this implement/fix?

Makes the CO2 auto calibration toggle actually work at runtime, and renames it for consistency with the other SCD40 products.

• The existing "SCD40 Automatic Self Calibration" switch only set the scd4x component's in-memory flag, which is not written to the sensor until the next reboot. It was also hidden (disabled_by_default: true). The replacement "CO2 Auto Calibration" switch (same name as the new AIR-1/MSR-2/MTR-1 switch) is visible by default and takes effect immediately: the script stops periodic measurement, sends the ASC command over I2C, and restarts measurement. The saved choice is re-applied ~20 seconds after every boot.
• The on_boot re-apply lambdas in R_PRO-1_W.yaml and R_PRO-1_ETH.yaml are removed; the restored switch state now handles boot re-apply through the same script (one mechanism instead of two).
• automatic_self_calibration: true is now set explicitly instead of relying on the ESPHome default, so there is no calibration behavior change: ASC was already on by default for the R_PRO-1.
• Version bumped to 26.6.10.1.

Migration caveat for release notes (why this is marked breaking): the entity rename breaks any automation or dashboard referencing the old switch entity, and means a previously saved switch state does not carry over; devices fall back to the default (on) after updating. Anyone who had the old hidden switch turned off needs to turn the new one off once. Small audience, since the old switch was hidden and required a reboot to act.

This is part of the same rollout as AIR-1, MSR-2, and MTR-1 (which flip ASC from off to on and gain the same switch). A wiki update covering all four products is ready to merge alongside the firmware releases.

Verification: esphome compile passes for R_PRO-1_W.yaml and R_PRO-1_ETH.yaml (ESPHome 2026.1.3). Not yet tested on hardware.

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

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 9022ed76-fa4a-4efc-9c33-cbb2d305ce32

📥 Commits

Reviewing files that changed from the base of the PR and between 80dca16 and 874d09a.

📒 Files selected for processing (3)

• Integrations/ESPHome/Core.yaml
• Integrations/ESPHome/R_PRO-1_ETH.yaml
• Integrations/ESPHome/R_PRO-1_W.yaml

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🧪 Generate unit tests (beta)

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