feat: add TMDB original language exclusions

[johncodeos]

Summary

• add an Exclude Original Languages control to TMDB discover catalog creation/editing
• persist excluded original language codes in discover metadata
• filter TMDB discover results by original_language before metadata expansion

Test Plan

• npx -y -p node@24 node --test -r ts-node/register addon/**/*.test.js
• npx -y -p node@24 node node_modules/typescript/bin/tsc -p tsconfig.backend.json
• npx -y -p node@24 node node_modules/vite/bin/vite.js build
• npx -y -p node@24 node node_modules/eslint/bin/eslint.js configure/src addon/lib/getCatalog.ts addon/utils/original-language-filters.ts addon/utils/original-language-filters.test.js

[github-actions]

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[johncodeos]

Closing this PR for now.