Move Heiman‑specific converters to local and leverage cluster definitions.

[svhelge]

Move Heiman‑specific converters to local, improve typing for Heiman attributes, and leverage cluster definitions.
Refactor by extracting shared logic into heimanExtend.

[Copilot]

Pull request overview

This PR refactors Heiman device support by moving Heiman-specific converters out of the global converter registries into src/devices/heiman.ts, and updates several reads/exposes to use cluster attribute names/types instead of raw IDs.

Changes:

• Moved Heiman IR remote / scenes / air-quality / doorbell converters into src/devices/heiman.ts (tzLocal/fzLocal) and removed them from src/converters/*.
• Added helper methods to heimanExtend and switched several device definitions/configure reads to use cluster attribute names.
• Adjusted heimanClusterSpecial attribute metadata (e.g., enabling writes for some WiFi/camera-related attributes).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 7 comments.

File	Description
src/devices/heiman.ts	Adds local Heiman converters and refactors multiple exposes/configure reads to use cluster attribute names and shared heimanExtend helpers.
src/converters/toZigbee.ts	Removes global heiman_ir_remote toZigbee converter now that it is local to Heiman devices.
src/converters/fromZigbee.ts	Removes global Heiman fromZigbee converters now that they are local to Heiman devices.

[ArJay60]

Can you add CO detector HS1CA-E as by #30738. External converter at the bottom of @30738 works.

[svhelge]

Can you add CO detector HS1CA-E as by #30738. External converter at the bottom of @30738 works.

I can create a PR for 30738 after this PR is merged.

[svhelge]

@Koenkk , all Copilot comments resolved.

[Koenkk]

I will create a hotfix release for the current Tuya issues, so will hold off this pr until then.

[Koenkk]

Hot-fix release is out, could you fix the merge conflicts? Then this is ready

[Koenkk]

Thanks!