0.24.0

• breaking effects: hoist fs/types/effects → fs/effects and fold fs/io into fs/effects/node/module.ts; callers use the runner's run(p) / runEffect(p) entry points #943
• breaking emergent_testing: remove fs/emergent_testing/module.ts; the external-runner entry is now the self-contained fs/emergent_testing/all.test.ts #943