* perf: load HTTP dependencies only in the HTTP worker
* docs: record 30-minute idle resource comparison
* perf: isolate database initialization from the cluster primary
* docs: record isolated database startup resource comparison
* perf: avoid an extra shell child in Docker health probes
* perf: load notification dependencies only when needed
* perf: retain queue cleanup after notification loading comparison
* fix: stop page polling after unmount and avoid duplicate fetches
* perf: share WebSocket session polling across connections
* docs: measure real WebSocket container CPU and memory
* perf: reuse JWT validation within each WebSocket session check
* perf: bound login IP lookup allocations with an address cache
* refactor: limit resource optimization PR to three core changes
* docs: benchmark the three core optimizations against develop
* chore: remove documentation and benchmark artifacts from PR
