fix(keysync): swallow expected supabase errors by code/status, not just message

apps/desktop/src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "ChatApp",
-  "version": "0.4.3",
+  "version": "0.4.4",
   "identifier": "com.meinname.chatapp",
   "build": {
     "beforeDevCommand": "pnpm vite:dev",

apps/desktop/src/lib/conversationKeySync.ts

@@ -164,19 +164,12 @@ async function syncOneConversationGaps(ctx: SyncCtx, convId: string): Promise<vo
     try {
       await shareConvKeyToDevice(supabase, convId, dev.id, pgHexToBytes(dev.public_key), ownCtx);
     } catch (err: unknown) {
-      // Backfill is best-effort. Common silent failures:
-      //   - This device hasn't been wrapped for us yet either, so
-      //     tryGetConvKey couldn't unwrap (another peer will fill the gap).
+      // Backfill is best-effort. Most common silent failures:
+      //   - tryGetConvKey couldn't unwrap (another peer will fill the gap).
       //   - RLS rejects because the recipient's owner is a pending (not-yet
-      //     accepted) DM member, or has been removed from the conv.
-      // Any of these are recoverable — log only at debug level.
-      const msg = err instanceof Error ? err.message : String(err);
-      const isExpected =
-        msg.includes('does not have it yet') ||
-        msg.includes('row-level security') ||
-        msg.includes('403') ||
-        msg.includes('Forbidden');
-      if (!isExpected) {
+      //     accepted) DM member, or was removed from the conv.
+      // Both are recoverable / expected, swallow without spam.
+      if (isExpectedShareFailure(err)) continue;
       console.warn('keySync: shareConvKeyToDevice gap-fill failed', {
         convId,
         recipient: dev.id,
@@ -185,6 +178,21 @@ async function syncOneConversationGaps(ctx: SyncCtx, convId: string): Promise<vo
     }
   }
 }
+
+function isExpectedShareFailure(err: unknown): boolean {
+  if (!err || typeof err !== 'object') return false;
+  const e = err as { message?: string; code?: string; details?: string; status?: number };
+  const code = (e.code ?? '').toString();
+  const status = e.status;
+  const haystack = (e.message ?? '') + ' ' + (e.details ?? '');
+  return (
+    status === 403 ||
+    code === '42501' || // postgres: insufficient_privilege (RLS)
+    code === '23505' || // unique_violation
+    haystack.includes('row-level security') ||
+    haystack.includes('does not have it yet') ||
+    haystack.includes('Forbidden')
+  );
 }
 
 async function wrapForOneDevice(