feat: flow-optimizer v2 + state-machine extensions + heypiggy-login refinements

- flow_optimizer: autonomous flow promotion with skip-vision execution
- state_machine: extended state handling for survey automation
- heypiggy-login: refined Google OAuth flow steps
- apm.py: APM integration for survey metrics
- macos-ax-cli integration (popup detection, system-wide windows)

Author: SIN-CI

.gitignore

@@ -31,3 +31,6 @@ profiles/
 # Graphify knowledge graph cache
 
 .doctor/
+.build/
+__pycache__/
+.graphify/cache/