A community based topic aggregation platform built on atproto

refactor: update lexicon to use .community. naming convention master

Update AT Protocol lexicon schema and test data to use singular .community. instead of .communities. in handle format. Changes: - Update profile.json lexicon schema with new handle pattern - Update test fixtures to use singular convention - Update lexicon validation tests This aligns with AT Protocol naming standards where all record types use singular form (e.g., app.bsky.feed.post, app.bsky.graph.follow). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>


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3 changed files