[DSL/YAML generator] Consider item pattern formatter even without label

[lolodomo]

Items without label but with a formatter are now properly considered when generating DSL and YAML syntax.
Example: Number SceneItem "[MAP(scene.map):%s]"
Bug was reported on the community forum.

[openhab-bot]

This pull request has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/yaml-configuration-for-item-with-map-transform-and-no-channel/167340/10

[lolodomo]

A backport to branch 5.0.x would be appreciated.

[Copilot]

Pull request overview

This PR fixes a bug where items with a formatter (pattern) but without a label were not properly handled when generating DSL and YAML syntax. The fix ensures that formatters are now considered independently of whether a label exists.

Key Changes:

• In YAML converter: Moved formatter handling outside the label condition so format field is always set when a non-default formatter exists
• In DSL converter: Restructured logic to generate a label containing just the pattern when no label exists but a formatter is present

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 7 comments.

File	Description
bundles/org.openhab.core.model.yaml/src/main/java/org/openhab/core/model/yaml/internal/items/fileconverter/YamlItemFileConverter.java	Moved formatter calculation and assignment outside label condition to handle formatters independently
bundles/org.openhab.core.model.item/src/org/openhab/core/model/item/internal/fileconverter/DslItemFileConverter.java	Restructured pattern injection logic to generate label with pattern even when original label is absent

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