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⚡ Bolt: Optimize HashSet away in emit_sla_alerts - #117

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bolt-remove-hashset-alert-2310308191572356091
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⚡ Bolt: Optimize HashSet away in emit_sla_alerts#117
ovasylenko wants to merge 1 commit into
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bolt-remove-hashset-alert-2310308191572356091

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@ovasylenko

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💡 What: Replaced the std::collections::HashSet inside emit_sla_alerts with a sorted Vec of references and a binary_search. Derived PartialOrd and Ord for InstanceId in orch8-types.
🎯 Why: Creating and populating a HashSet on every tick inside emit_sla_alerts introduces unnecessary heap allocation and hashing overhead on the execution hot path. Using a pre-sorted vector of tuple references (&InstanceId, &BlockId) avoids these allocations and speeds up the exclusion check.
📊 Impact: Reduces heap allocations and CPU cycles spent on hashing during scheduler SLA sweeps, particularly when batch processing many candidate breaches.
🔬 Measurement: Verified via cargo +nightly test -p orch8-engine to ensure no changes to alert emission semantics, and ran formatting/lint checks.


PR created automatically by Jules for task 2310308191572356091 started by @ovasylenko

Replaces the `HashSet` used for deduplicating SLA alerts during the scheduler
execution hot path with a zero-allocation sorted `Vec` and `binary_search`.
This avoids both heap allocation for bucket arrays and hashing overhead
when checking bounds, streamlining the loop. Derived PartialOrd and Ord
on `InstanceId` to support sorting by tuple.

Co-authored-by: ovasylenko <3797513+ovasylenko@users.noreply.github.com>
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