docs(spec): add CEP-23 and CEP-24 draft specifications

[1amKhush]

Summary

This PR introduces two new Standards Track draft CEPs:

• CEP-23: Server Profile Metadata
• CEP-24: Server Reviews via NIP-22

The drafts follow existing CEP style and codify protocol expectations for identity metadata and review discovery.

Problem

• CEP-23 needed a formal spec defining optional server identity metadata (kind 0) and client rendering preference rules.
• CEP-24 needed a formal spec defining interoperable server review discovery using NIP-22 comments on server announcement identities.
• Without draft specs, implementations may diverge in tag usage, discovery filters, moderation assumptions, and fallback behavior.

Design

• Added CEP-23 draft covering:
  • abstract and motivation for kind 0 server identity
  • NIP-01-compatible metadata fields
  • optional ContextVM marker field
  • relationship to CEP-6 capability announcements
  • client rendering preference and fallback guidance
  • startup publication behavior as opt-in
• Added CEP-24 draft covering:
  • NIP-22 kind 1111 review model for servers
  • top-level review and reply tag patterns
  • discovery filter guidance
  • moderation and spam-resistance considerations
  • compatibility and dependency framing

Key Files

• cep-23.md
• cep-24.md

Test Evidence

• Docs build validation completed successfully:
  • bun run build: success
• Generated pages include:
  • /spec/ceps/cep-23
  • /spec/ceps/cep-24

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Closes #23
Closes #24

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Pull request overview

This PR adds two new Standards Track draft CEP specifications to the docs site to formalize server identity metadata (via Nostr kind:0) and server review discovery (via NIP-22 comments on server announcements).

Changes:

• Add CEP-23 draft defining optional server profile metadata using NIP-01 kind:0.
• Add CEP-24 draft defining server reviews/discussion discovery using NIP-22 comment events targeting CEP-6 server announcements.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.

File	Description
src/content/docs/spec/ceps/cep-23.md	New draft spec for optional server profile metadata using Nostr kind:0.
src/content/docs/spec/ceps/cep-24.md	New draft spec for server reviews/discussion using NIP-22 comments targeting kind:11316 announcements.

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[ContextVM-org]

Great drafts! I let some comments to make them more concise and clear