Add TypeScript submodule support for SpacetimeDB modules

- TypeScript server SDK: runtime API for module mounting (submodules),
  including namespaced dispatch, ctx.as helpers for cross-namespace calls,
  and HTTP handler delegation
- TypeScript client codegen: namespace-aware table/reducer/procedure
  exports and query builder for submodule tables and views
- Migrations: auto-migrate support for submodule tables, views, and
  indexes; AddConstraint step added alongside NamespacedIdentifier-based
  migration steps
- CLI: namespace support for `spacetime call` and `spacetime sql`
- C++/C# bindings: autogenerated RawSubmoduleV10 types
- module-test-ts: submodule integration test (lib_submodule)

Author: aasoni

crates/bindings-cpp/include/spacetimedb/internal/autogen/RawModuleDefV10Section.g.h

@@ -12,22 +12,23 @@
 #include <memory>
 #include "../autogen_base.h"
 #include "spacetimedb/bsatn/bsatn.h"
-#include "RawViewPrimaryKeyDefV10.g.h"
 #include "RawTableDefV10.g.h"
-#include "RawViewDefV10.g.h"
-#include "RawScheduleDefV10.g.h"
-#include "CaseConversionPolicy.g.h"
-#include "RawRowLevelSecurityDefV9.g.h"
-#include "RawHttpRouteDefV10.g.h"
-#include "RawReducerDefV10.g.h"
 #include "Typespace.g.h"
 #include "RawLifeCycleReducerDefV10.g.h"
-#include "ExplicitNames.g.h"
-#include "RawHttpHandlerDefV10.g.h"
+#include "RawReducerDefV10.g.h"
 #include "RawTypeDefV10.g.h"
+#include "RawRowLevelSecurityDefV9.g.h"
+#include "RawHttpRouteDefV10.g.h"
+#include "RawSubmoduleV10.g.h"
+#include "RawViewDefV10.g.h"
+#include "ExplicitNames.g.h"
 #include "RawProcedureDefV10.g.h"
+#include "CaseConversionPolicy.g.h"
+#include "RawScheduleDefV10.g.h"
+#include "RawViewPrimaryKeyDefV10.g.h"
+#include "RawHttpHandlerDefV10.g.h"
 
 namespace SpacetimeDB::Internal {
 
-SPACETIMEDB_INTERNAL_TAGGED_ENUM(RawModuleDefV10Section, SpacetimeDB::Internal::Typespace, std::vector<SpacetimeDB::Internal::RawTypeDefV10>, std::vector<SpacetimeDB::Internal::RawTableDefV10>, std::vector<SpacetimeDB::Internal::RawReducerDefV10>, std::vector<SpacetimeDB::Internal::RawProcedureDefV10>, std::vector<SpacetimeDB::Internal::RawViewDefV10>, std::vector<SpacetimeDB::Internal::RawScheduleDefV10>, std::vector<SpacetimeDB::Internal::RawLifeCycleReducerDefV10>, std::vector<SpacetimeDB::Internal::RawRowLevelSecurityDefV9>, SpacetimeDB::Internal::CaseConversionPolicy, SpacetimeDB::Internal::ExplicitNames, std::vector<SpacetimeDB::Internal::RawHttpHandlerDefV10>, std::vector<SpacetimeDB::Internal::RawHttpRouteDefV10>, std::vector<SpacetimeDB::Internal::RawViewPrimaryKeyDefV10>)
+SPACETIMEDB_INTERNAL_TAGGED_ENUM(RawModuleDefV10Section, SpacetimeDB::Internal::Typespace, std::vector<SpacetimeDB::Internal::RawTypeDefV10>, std::vector<SpacetimeDB::Internal::RawTableDefV10>, std::vector<SpacetimeDB::Internal::RawReducerDefV10>, std::vector<SpacetimeDB::Internal::RawProcedureDefV10>, std::vector<SpacetimeDB::Internal::RawViewDefV10>, std::vector<SpacetimeDB::Internal::RawScheduleDefV10>, std::vector<SpacetimeDB::Internal::RawLifeCycleReducerDefV10>, std::vector<SpacetimeDB::Internal::RawRowLevelSecurityDefV9>, SpacetimeDB::Internal::CaseConversionPolicy, SpacetimeDB::Internal::ExplicitNames, std::vector<SpacetimeDB::Internal::RawHttpHandlerDefV10>, std::vector<SpacetimeDB::Internal::RawHttpRouteDefV10>, std::vector<SpacetimeDB::Internal::RawViewPrimaryKeyDefV10>, std::vector<SpacetimeDB::Internal::RawSubmoduleV10>)
 } // namespace SpacetimeDB::Internal

crates/bindings-cpp/include/spacetimedb/internal/autogen/RawSubmoduleV10.g.h

@@ -0,0 +1,32 @@
+// THIS FILE IS AUTOMATICALLY GENERATED BY SPACETIMEDB. EDITS TO THIS FILE
+// WILL NOT BE SAVED. MODIFY TABLES IN YOUR MODULE SOURCE CODE INSTEAD.
+
+// This was generated using spacetimedb codegen.
+
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+#include <optional>
+#include <memory>
+#include "../autogen_base.h"
+#include "spacetimedb/bsatn/bsatn.h"
+
+namespace SpacetimeDB::Internal {
+struct RawModuleDefV10;
+} // namespace SpacetimeDB::Internal
+
+namespace SpacetimeDB::Internal {
+
+SPACETIMEDB_INTERNAL_PRODUCT_TYPE(RawSubmoduleV10) {
+    std::string namespace_;
+    std::shared_ptr<SpacetimeDB::Internal::RawModuleDefV10> module;
+
+    void bsatn_serialize(::SpacetimeDB::bsatn::Writer& writer) const {
+        ::SpacetimeDB::bsatn::serialize(writer, namespace_);
+        ::SpacetimeDB::bsatn::serialize(writer, *module);
+    }
+    SPACETIMEDB_PRODUCT_TYPE_EQUALITY(namespace_, module)
+};
+} // namespace SpacetimeDB::Internal