feat: add spacetimedb json migration tooling

server-rs/crates/spacetime-module/src/lib.rs

@@ -20,7 +20,9 @@ use module_quest::{
 };
 pub(crate) use serde_json::{Map as JsonMap, Value as JsonValue, json};
 pub(crate) use shared_kernel::format_timestamp_micros;
-pub use spacetimedb::{ProcedureContext, ReducerContext, SpacetimeType, Table, Timestamp};
+pub use spacetimedb::{
+    Identity, ProcedureContext, ReducerContext, SpacetimeType, Table, Timestamp,
+};
 use std::collections::HashSet;
 
 mod ai;
@@ -29,6 +31,7 @@ mod auth;
 mod big_fish;
 mod domain_types;
 mod entry;
+mod migration;
 mod puzzle;
 mod runtime;
 
@@ -38,6 +41,7 @@ pub use auth::*;
 pub use big_fish::*;
 pub use domain_types::*;
 pub use entry::*;
+pub use migration::*;
 pub use runtime::*;
 
 #[spacetimedb::table(accessor = player_progression)]