fix(core): Localize default collection filter names

[grolmus]

Summary

Localizes the default collection-filter names shown in the Dashboard. The collection-filter ConfigurableOperationDef labels/descriptions in @vendure/core were English-only, so the "Add collection filter" dropdown options and the arg labels inside a filter card stayed in English even when the Dashboard UI language was switched.

This is the server-side complement to OSS-405 (#4410): that PR fixed the dashboard-owned strings, but the filter names/labels are served by core via the collectionFilters query and resolved server-side by languageCode, so they can only be translated here.

Root cause

In packages/core/src/config/catalog/default-collection-filters.ts, the user-facing label/description fields are LocalizedString[] that only defined LanguageCode.en. When the dashboard requests collectionFilters with e.g. languageCode: de, the resolver falls back to the English value.

Change

Expanded the 9 short user-facing strings to include the 26 locales the Dashboard ships (en + de, es, fr, it, nl, pt_BR, pt_PT, cs, pl, ro, hr, hu, nb, sv, tr, uz, ru, bg, uk, ar, fa, he, ja, ne, zh_Hans, zh_Hant):

• Filter descriptions: "Filter by facet values", "Filter by product variant name", "Manually select product variants", "Manually select products"
• Arg labels: "Combination mode", "Facet values", "Contains any", "Product variants", "Products"

The apply() query-builder logic is untouched.

Scope notes

• Two long arg tooltip descriptions (combineWithAnd, containsAny) are intentionally left English-only: translated, they exceed the eslint max-len (170) in verbose languages after prettier reformatting, which would require a // eslint-disable per line. Tracked as a follow-up. (Result: a de user sees a German label with an English hover tooltip on those two args.)
• Collection filters are intentionally the only configurable operation localized inline here. Promotions/shipping/payment configurable-ops remain English-only; a broader extraction of all such strings into lingui catalogs is proposed separately in OSS-560 rather than inlining everywhere. This PR is the targeted fix for the collection-filter UI.

Test plan

• tsc on default-collection-filters.ts: no errors; all 26 codes are valid LanguageCode members.
• eslint clean; prettier reports the file already conforms.
• No behavioural/query logic changed — the diff is data (LocalizedString entries) only.

Relates to OSS-449. Complements #4410 (OSS-405).

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Project	Deployment	Actions	Updated (UTC)
vendure-storybook	Error		Jul 2, 2026 1:47pm

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📥 Commits

Reviewing files that changed from the base of the PR and between 32d4746 and 758a983.

📒 Files selected for processing (1)

• packages/core/src/config/catalog/default-collection-filters.ts

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📝 Walkthrough

Walkthrough

This PR updates default-collection-filters.ts by converting single-language (en-only) UI label and description fields into multi-language arrays keyed by LanguageCode. Affected entities include combineWithAndArg, facetValueCollectionFilter, variantIdCollectionFilter, productIdCollectionFilter, and the exported facet-value-filter, variant-name-filter, variant-id-filter, and product-id-filter configurations. No filtering or query-building logic changes.

Changes

File	Summary
packages/core/src/config/catalog/default-collection-filters.ts	Converted en-only label/description fields to multi-language arrays across collection filters and their arguments.

Possibly related issues

• Dashboard i18n regression: Collections “Add collection filter” UI remains in English after switching language (new collection page) #4410: This PR adds multilingual labels/descriptions for collection filter UI metadata, addressing the untranslated "Add collection filter" UI issue.
• Extract configurable-operation translations out of core .ts files into lingui catalogs #4820: This PR updates inline multi-language labels/descriptions in the same file, matching the focus on configurable-operation translations in core.

Suggested reviewers: BibiSebi

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: localizing default collection filter names.
Description check	✅ Passed	Covers summary, root cause, change, scope, and test plan, and references the related issues.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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