security: sanitize episode HTML with DOMPurify (XSS)

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Episode descriptions came from third-party RSS feeds and were rendered
via dangerouslySetInnerHTML without sanitization. Wrap with DOMPurify
using a whitelist of safe tags/attrs and an http(s)/mailto-only URI
regex.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

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MichaelandClaude Haiku 4.5 committed 2026-04-18 07:25:29 +02:00

1 parent e2adce33b8

commit 9bf95b4ac9

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+6190 -4

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frontend/package-lock.json

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