v0.2.0

Features

• 162 validation rules (was 75) across 12 layers — added Scope Fields,
  Extensions, and Semantic layers
• Scope field validation (layers 1-3): HTTP (HS-001..HS-028), WebSocket
  (WS-001..WS-025), Lifespan (LS-001..LS-004) — validates all scope dict fields
  per ASGI spec
• Extension validator (layer 10): gate checks for Server Push, Zero Copy Send,
  Path Send, Early Hints, Debug events (EX-001..EX-011)
• Semantic validator (layer 11): duplicate headers, missing Content-Type,
  Content-Length mismatch, Set-Cookie security, disconnect tracking,
  TTFB/lifecycle/body-size thresholds (SEM-001..SEM-011)
• pytest plugin (pip install asgion[pytest]):
  • asgi_inspect fixture — wrap ASGI apps with validation in tests
  • @pytest.mark.asgi_validate marker — auto-check violations at teardown
  • --asgi-strict / --asgi-min-severity CLI flags
• Additional FSM rules: HF-001, HF-009, HF-010, HF-012, WF-011, LF-009, LF-010

Internal

• Scope checks compiled from declarative ProtocolSpec.scope_checks
• Configurable perf thresholds (TTFB, lifecycle, body size, chunk fragmentation)