fix(gateway): prevent duplicate response messages from flush/complete race

fix: comprehensive security and reliability review (26 fixes)

feat: add memory_get_briefs tool, optional userId defaults, silent scheduler jobs, and bundled skills loading

fix(main): strengthen Po's identity prompt and set process title

feat(main): wire storeMessage into SchedulerService for job memory persistence

feat(scheduler): thread storeMessage through SchedulerService

feat(scheduler): store job output in memory via storeMessage callback

feat(scheduler): add storeMessage to SchedulerDeps type

docs: add scheduler memory persistence implementation plan

docs: update scheduler memory persistence spec after review

docs: add scheduler memory persistence design spec

fix: resolve multiple runtime bugs in SDK spawn, Discord streaming, and session resume

docs: update CLAUDE.md with session persistence, notifications, workspaces, permissions, compaction

fix(scheduler): add compaction config to scheduler test mock

feat(main): wire compactSession closure into gateway for context compaction