- Add resource limits (heavy/medium/light tiers) to all 59 .NET services
- Add .NET GC tuning (server/workstation GC, DATAS, conserve memory)
- Convert FirstSignalSnapshotWriter from 10s polling to Valkey pub/sub
- Convert EnvironmentSettingsRefreshService from 60s polling to Valkey pub/sub
- Consolidate GraphAnalytics dual timers to single timer with idle-skip
- Increase healthcheck interval from 30s to 60s (configurable)
- Reduce debug logging to Information on 4 high-traffic services
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sprint: SPRINT_20251229_049_BE_csproj_audit_maint_tests
Tasks: AUDIT-0001 through AUDIT-0147 APPLY tasks (approved decisions 1-9)
Changes:
- Set TreatWarningsAsErrors=true for all production .NET projects
- Fixed nullable warnings in Scanner.EntryTrace, Scanner.Evidence,
Scheduler.Worker, Concelier connectors, and other modules
- Injected TimeProvider/IGuidProvider for deterministic time/ID generation
- Added path traversal validation in AirGap.Bundle
- Fixed NULL handling in various cursor classes
- Third-party GostCryptography retains TreatWarningsAsErrors=false (preserves original)
- Test projects excluded per user decision (rejected decision 10)
Note: All 17 ACSC connector tests pass after snapshot fixture sync
