Add Runtime Intelligence Lab handoff manifest

[hyeokjun32]

Summary

• add EdgeEnv producer-side Runtime Intelligence Lab handoff manifest builder
• expose edgeenv report runtime-intelligence-handoff for path/role/schema handoff metadata
• document the EdgeEnv-to-Lab handoff flow without making EdgeEnv produce AIGuard evidence

Tests

• poetry run python -m pytest tests/test_runtime_intelligence_lab_handoff.py -q
• poetry run python -m pytest tests/test_runtime_telemetry_history.py tests/test_regression.py -q
• poetry run python -m pytest -q
• poetry run edgeenv doctor
• git diff --check
• bash scripts/smoke_entrypoints.sh