v0.2.0

Features

• storage: atomic counters, ranged scan/delete/drain, execution_clear
• functions: advertise per-function examples in FunctionInfo
• catalog: auto-register catalog Function; fail-fast on non-gob-encodable table state

Fixes

• complete canonical function inventory, fix decimal add, green the suite
• coverage: flush worker coverage on SIGTERM (fixes systematic undercount)

Docs & tooling

• sdk: document exported symbols; stricter doc linting (revive + godot + godoclint, interface contracts)
• ci: measure worker SDK coverage from the integration suite
• ci: integration suite now tests against vgi main + haybarn-v1.5.4-rc1
• test: cross-language simple_writable + typed_probe coverage fixtures

Full changelog: v0.1.2...v0.2.0