SpacetimeDB: subscription-erfaringer, refresh med enrichFromPg, whitespace-fiks

- Dokumentert at subscriptions ikke støtter JOINs (feiler stille)
- refresh() kaller enrichFromPg() for å hente fersk metadata fra PG
- Whitespace-normalisering i autogenererte module_bindings

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/erfaringer/spacetimedb_integrasjon.md

@@ -107,5 +107,26 @@ Ny modell:
 - SyncOutbox-events prosesseres hver 1. sekund
 - Støtter: `messages/insert`, `messages/delete`, `messages/update`, `message_reactions/insert`, `message_reactions/delete`
 
+## 7. Subscription-begrensninger
+
+**SpacetimeDB-subscriptions støtter IKKE JOINs.** En subscription-query som `SELECT mr.* FROM message_reaction mr JOIN chat_message cm ON cm.id = mr.message_id WHERE ...` feiler stille — `onApplied` kalles aldri, og ingen data vises.
+
+Bruk kun enkle `SELECT * FROM tabell WHERE ...`-queries i `.subscribe([...])`. Filtrer heller klient-side etter at data er lastet.
+
+Eksempel:
+```typescript
+// FEIL — feiler stille, ingen data
+.subscribe([
+  `SELECT * FROM chat_message WHERE channel_id = '${id}'`,
+  `SELECT mr.* FROM message_reaction mr JOIN chat_message cm ON cm.id = mr.message_id WHERE cm.channel_id = '${id}'`
+]);
+
+// RIKTIG — last alle reaksjoner, filtrer i koden
+.subscribe([
+  `SELECT * FROM chat_message WHERE channel_id = '${id}'`,
+  `SELECT * FROM message_reaction`
+]);
+```
+
 ### Fallback
 PG-polling adapter (`pg.svelte.ts`) brukes kun når SpacetimeDB ikke er konfigurert. Markeres som `readonly: true`.

web/src/lib/chat/module_bindings/index.ts

@@ -156,3 +156,4 @@ export class DbConnection extends __DbConnectionImpl<typeof REMOTE_MODULE> {
     return new SubscriptionBuilder(this);
   };
 }
+

web/src/lib/chat/module_bindings/types.ts

@@ -42,3 +42,4 @@ export const SyncOutbox = __t.object("SyncOutbox", {
   synced: __t.bool(),
 });
 export type SyncOutbox = __Infer<typeof SyncOutbox>;
+

web/src/lib/chat/module_bindings/types/reducers.ts

@@ -25,3 +25,4 @@ export type LoadReactionsParams = __Infer<typeof LoadReactionsReducer>;
 export type MarkSyncedParams = __Infer<typeof MarkSyncedReducer>;
 export type RemoveReactionParams = __Infer<typeof RemoveReactionReducer>;
 export type SendMessageParams = __Infer<typeof SendMessageReducer>;
+

web/src/lib/chat/spacetime.svelte.ts

@@ -325,7 +325,7 @@ export function createSpacetimeChat(
 		edit,
 		delete: del,
 		react,
-		refresh: async () => { rebuildMessages(); },
+		refresh: async () => { rebuildMessages(); await enrichFromPg(); },
 		destroy
 	};
 }