Lead Entry Guard — reliability milestone

Reliability milestone release for Lead Entry Guard.

This version validates the ingestion gateway under realistic load and failure scenarios.

Highlights

• 100k messy leads synthetic benchmark
• ~1.3k records/sec ingestion throughput
• 30-minute soak stability test (2.3M leads processed, 0 errors)
• per-tenant concurrency isolation (ADR-006)
• noisy neighbor protection under load
• ~99 tests across unit / integration / resilience / chaos layers

Key reliability properties

• deterministic decision engine
• idempotent ingestion (source_id replay safety)
• tenant-scoped fingerprint identity signals
• graceful degraded modes (Redis / Bloom failures)
• async telemetry that never blocks ingestion

This release marks the first reliability milestone of the project.