Add SQLite-backed operational state

[levifig]

Summary

• add the Go-backed SQLite operational state runtime and migration/import/export surfaces
• guard Go-only commands until SQLite state is initialized and harden state-store concurrency, imports, exports, and resolver validation
• add a portable launcher/native-runtime layout so legacy TypeScript commands remain installable cross-platform during the Go port

Verification

• npm run build
• npm run verify:go-artifacts
• npm run typecheck
• npm run test -- --reporter=dot
• GIT_CONFIG_GLOBAL=/dev/null go test ./...
• go vet ./...