Add changelog post

[tembo]

Summary

Added biweekly changelog post (2026-03-20.mdx) covering:

• Priority-Based Message Processing: Real-time messages now prioritized over historical imports in job queue
• Trial Plan Clarity: Added visibility for thread import limits (100 per integration) with informational banners
• Other Improvements: Discord reliability enhancements, improved data loading for related entities, and updated documentation for pricing FAQ and integration guides

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Summary by cubic

Adds the biweekly changelog post for 2026-03-20.
It highlights priority-based processing for real-time messages, clearer trial import limits (100 per integration), and other improvements like Discord reliability, better related-data loading, and updated docs.

^{Written for commit ec96c5b. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 1 file

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Auto-approved: This is a documentation-only change adding a new changelog post in MDX format with no impact on application logic.}