docs(eula): strengthen content moderation and abuse policy language

Update EULA Section 5 to explicitly state zero-tolerance policy for
objectionable content and abusive users, including account termination
consequences. Add references to in-app blocking and reporting features
that empower users to manage their experience.

Changes:
- Add zero-tolerance policy statement for objectionable content
- Document account termination for abusive behavior
- Reference user blocking feature and its immediate effect
- Reference in-app content reporting to the Coves Team

Co-Authored-By: Claude Opus 4.6 <[e-mail]>

assets/legal/eula.md

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 - Contains malware, spam, or other harmful material
 - Violates any applicable law or regulation
 
-We reserve the right to remove any content and terminate accounts that violate these terms. Confirmed CSAM is reported to NCMEC and relevant law enforcement as required by law.
+**Coves maintains a zero-tolerance policy for objectionable content and abusive users.** Any user found posting objectionable content or engaging in abusive behavior will have their account terminated and content removed. Users can block abusive users at any time, which immediately removes that user's content from their experience. Users can also report objectionable content directly through the App, which notifies the Coves Team for review and action. Confirmed CSAM is reported to NCMEC and relevant law enforcement as required by law.
 
 ## 6. Open Source License and Restrictions