## Purpose

Canonical specification for article-translations-ml-tm requirements synced from OpenSpec change deltas.

## Requirements

### Requirement: System generates Tamil and Malayalam translations at article creation time
The system SHALL generate Tamil (`ta`) and Malayalam (`ml`) translations for each newly created article during ingestion and validate translation quality before persistence.

#### Scenario: Translation generation for new article
- **WHEN** a new source article is accepted for storage
- **THEN** the system requests Tamil and Malayalam translations for headline and summary
- **AND** translation generation occurs in the same ingestion flow for that article

#### Scenario: Translation failure fallback
- **WHEN** translation generation fails for one or both target languages
- **THEN** the system stores the base article in English
- **AND** marks missing translations as unavailable without failing the whole ingestion cycle

#### Scenario: Translation quality validation failure
- **WHEN** generated translation fails language/script sanity or gibberish validation checks
- **THEN** the system does not persist invalid translation content for that article-language pair
- **AND** records validation failure outcome for diagnostics

### Requirement: System stores translation variants linked to the same article
The system SHALL persist language-specific translated content as translation items associated with the base article.

#### Scenario: Persist linked translations
- **WHEN** Tamil and Malayalam translations are generated successfully
- **THEN** the system stores them as language-specific content variants linked to the base article identifier
- **AND** translation records remain queryable by language code

#### Scenario: No duplicate translation variants per language
- **WHEN** translation storage is attempted for an article-language pair that already exists
- **THEN** the system avoids creating duplicate translation items for the same language
- **AND** preserves one authoritative translation variant per article per language in this phase