Story 036: Multi-Language Support

[iagocavalcante]

Summary

As an organizer, I want the platform available in multiple languages, so that attendees and organizers can use it in their preferred language

Blocked by: (none)

Acceptance Criteria

1. Platform Localization

1. Language Selection: Users can select their preferred language. Platform auto-detects preference from browser settings.
2. Initial Languages: Platform ships with Portuguese (BR) and English.

2. Event Content Translation

3. Translatable Content: Organizers can provide translations for event content (names, descriptions, custom questions) in multiple languages. Untranslated content falls back to the default language.

Test Plan

Tier 1 — Acceptance Tests

• AC1: Select preferred language and auto-detect from browser settings
• AC2: Platform fully available in Portuguese (BR) and English
• AC3: Organizer provides event content translations with fallback

Tier 2 — Edge Cases

• Switch language mid-session preserves cart and progress
• Event with partial translations falls back per field
• Unsupported language falls back to default
• Email templates sent in user's preferred language

Assumptions

• Adding a new language requires adding translation files only -- no code changes.
• Community-contributed translations accepted via pull requests.

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📄 Full spec: spec/elixir-phoenix-migration/10-product/stories/story-036-multi-language-support.md