v0.10.1

What's Changed

• test: close low-risk coverage issues by @tbrandenburg in #218
• Resolve #208 (pi lockstep + SessionManager migration), #214 (E2E harness), #215 (registry symmetry + docs), #201 (AppShell mutation coverage) by @tbrandenburg in #221

Full Changelog: v0.10.0...v0.10.1