0.1.1

Fixes GraphQL schema errors when Polylang has no configured languages, including after the last language is removed. Ordinary queries and schema introspection work without referencing missing language enums. Behavior with configured languages is unchanged.

Adds isolated regression coverage without resetting the existing test database.

Verification: Composer lint and static analysis, all three language-state regression phases, and all nine bilingual HTTP integration tests passed.

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