Fix custom_text entity-mode snippets staying skipped for text-backed entities

[Copilot]

custom_text snippets configured in entity mode could remain skipped during briefing generation even when the linked source entity visibly had content. This was caused by treating the entity state as the only valid text source and by not allowing text entities in the selector.

• Entity-mode text extraction

  • Keep using the entity state when it contains usable text.
  • Fall back to common text-bearing attributes (text, message, value) when the state is blank, unknown, or unavailable.
  • Preserve the existing skipped behavior only when no usable text is present.

• Supported source entities

  • Extend the entity selector to include text entities in addition to input_text, sensor, and template.

• Regression coverage

  • Add provider/coordinator coverage for:
    • attribute-backed text when state is unknown
    • refreshed entity values across repeated generate() calls
    • selector support for text entities

result = await adapter.async_fetch({"source_ref": source_ref})
text = self._extract_entity_text(result)
if text is None:
    return {"empty": True}
return {"text": text, "title": None, "severity": None}

[Copilot]

Pull request overview

Fixes a bug in the custom_text provider’s entity mode where snippets could remain skipped despite the source entity having usable text, by broadening what counts as “text” and expanding supported entity domains.

Changes:

• Add text extraction fallback to common attributes (text, message, value) when entity state is blank/unknown/unavailable.
• Extend the entity selector to allow text entities in addition to existing domains.
• Add regression tests covering attribute-backed text, selector domains, and ensuring entity reads are refreshed on each coordinator generate().

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
custom_components/user_briefing/providers/custom_text.py	Adds text entity support and robust entity text extraction (state + attribute fallbacks).
tests/test_provider_schemas.py	Verifies the custom_text entity selector includes the text domain.
tests/test_custom_text.py	Adds test ensuring attribute fallback works when entity state is unknown.
tests/test_coordinator.py	Adds regression test ensuring entity-mode custom_text reads the latest entity value on each async_generate().

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