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Dev log: queue misconfiguration, misleading UI states, and smarter enum design

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A developer's short workday uncovered a significant bug where bulk lifecycle jobs were dispatched to a Redis queue while the database connection was expected, leaving jobs unclaimed while the UI falsely reported active deployments. The root cause was that a queue name appearing in config does not confirm anything is actively listening on that connection. To prevent silent failures, the UI message was updated to honestly reflect that a job was only enqueued, not executed. A provider health status enum was also refined to avoid collapsing distinct states — null was kept for unchecked providers rather than adding an Unknown case, and a Simulated status was introduced to distinguish fake-driver checks from genuine ones. Both fixes reflect a broader principle: systems should not report a verified state they have not actually confirmed.

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