Extend V10 function visibility and host invocation authority - #5892
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This was referenced Sep 8, 2026
Keep ENV metadata at section 15 and move draft capabilities to section 16. Regenerate module-library definitions together and preserve explicit host authority through canonical procedure namespace resolution.
Keep ENV imports at Wasm10.6 and JS2.2 and move invocation authority to Wasm10.7 and JS2.3. Preserve Environment15 and Capabilities16. Carry the reviewed sealed Rust ENV trait, module-library fixes, and CLI extraction/output changes. Preserve .NET10 NativeAOT linkage for the authorization import alongside ENV. Validated all five actual ENV cases, actual Wasm and V8 authority checks, four module libraries, Rust compile diagnostics, and scoped lint.
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Description of Changes
Adds explicit internal function visibility and host-owned invocation authority to V10 and all four module libraries. Authority is independent of sender Identity; lifecycle functions remain restricted to host lifecycle events. Updates schema validation and client code generation.
Depends on #5887 for persistent typed environments. Companions: SpacetimeDBPrivate#3941 and website #1366.
API and ABI breaking changes
Adds V10 variants and host imports without changing existing variant encodings. Modules using the additions require an updated host. No V11 ABI.
Rollback safety impact
Requires #5887. Older hosts cannot load modules using the new declarations or imports.
Expected complexity level and risk
4/5. Changes function authorization, scheduling, schema migration, and SDK/codegen behavior.
Testing
V10 encoding, visibility validation, Wasm/JavaScript invocation authority, lifecycle and scheduled dispatch, SDK bindings, client code generation, and regenerated connection-test fixtures.