feat(optimism): add interop revalidation attempt metrics and per-tx tracking #19149
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Implement aggregated metrics for interop supervisor revalidation attempts and track attempts per transaction in-memory to fulfill the TODO without introducing high-cardinality labels. Each supervisor check increments a global counter, and when a transaction is removed due to invalidation or interop reclassification, the number of attempts is recorded in a histogram. The number of active tracked entries is exposed as a gauge. This provides visibility into revalidation pressure and behavior while aligning with project metric best practices and avoiding per-hash labels.