Provide breaking changes summary and version recommendation for Issue 267 fix

[Copilot]

Responded to maintainer request for breaking changes analysis and version guidance on the Issue 267 fix PR.

Summary Provided

Breaking Changes:

• Removed DatabaseWithFallback and DatabaseWithStrataFallback classes
• Removed non-functional meta::geo::label system
• Introduced Database.query_all() static method as replacement

Migration Path:

# Old approach (no longer available)
db = DatabaseWithFallback(primary_db, fallback_db)
result = db.query(key)

# New approach
result = Database.query_all([primary_db, fallback_db], key)

Version Recommendation: Major version bump required due to public API removal.

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[JavadocMD]

Note: I was trying to get Copilot to follow-up on its review of #269. This is clearly not the way to do that (if it's even possible).