v1.0.0

Changelog

• 5e43ace Merge develop: plan-0.9 closure and README polish
• bca7901 chore(release): prepare v1.0.0
• 40e590c docs(readme): sync pins to v0.9.2 and clarify log filters
• bc988db feat: 1.0.0 contract prep and pre-release hygiene (bands B + A)