This task refines the logging metrics in the DevIndex Updater service.

Problem:
After the "Penalty Box" implementation (#9121), failed updates are counted as "successes" to rotate the queue and update the backlog count. This obscures the actual health of the run.

Goal:
Separate the metrics into:

• successCount: Valid updates (Data saved).
• failCount: Failed updates (Network/API errors, Penalty Boxed).
• skipCount: Skipped (Bots, Low Activity, Threshold Pruned).

Changes:

• Update Updater.mjs to track these counters separately.
• Update the final log report to show the breakdown.
• Ensure "Remaining Backlog" calculation subtracts the total processed (Success + Fail + Skip).