core: fix event projector lookup to use versioned type keys

Fixes a bug where projectors were stored with Definition object references
as Map keys but lookups were failing due to object identity mismatches.
Now uses versioned type strings as keys, ensuring events are correctly
matched to their projectors during sync processing.

This fixes issues where certain events would not be properly projected
to the read model, causing stale or missing data in views.

packages/opencode/src/sync/index.ts

@@ -214,7 +214,7 @@ export const defaultLayer = layer.pipe(Layer.provide(RuntimeFlags.defaultLayer))
 export const use = serviceUse(Service)
 
 export const registry = new Map<string, Definition>()
-let projectors: Map<Definition, ProjectorFunc> | undefined
+let projectors: Map<string, ProjectorFunc> | undefined
 const versions = new Map<string, number>()
 let frozen = false
 let convertEvent: ConvertEvent
@@ -226,7 +226,7 @@ export function reset() {
 }
 
 export function init(input: { projectors: Array<[Definition, ProjectorFunc]>; convertEvent?: ConvertEvent }) {
-  projectors = new Map(input.projectors)
+  projectors = new Map(input.projectors.map(([def, func]) => [versionedType(def.type, def.version), func]))
   for (let entry of EventV2.registry.values()) {
     if (!entry.version || !entry.aggregate) continue
     register({
@@ -309,7 +309,7 @@ function process<Def extends Definition>(
     throw new Error("No projectors available. Call `SyncEvent.init` to install projectors")
   }
 
-  const projector = projectors.get(def)
+  const projector = projectors.get(versionedType(def.type, def.version))
   if (!projector) {
     if (!def.type.includes("next")) throw new Error(`Projector not found for event: ${def.type}`)
     return