fix(ai-vault): normalize wrapped scan errors

src/main/ai-vault/session-scanner-background.ts

@@ -37,10 +37,7 @@ export function shouldUseAiVaultServiceProcess(): boolean {
   return process.env.NODE_ENV !== 'test'
 }
 
-/**
- * Without this a scan that tripped the circuit leaves the panel refusing every
- * refresh for the rest of the fault window, with no way for the user to retry.
- */
+// Let forced refreshes retry after a local service circuit opens.
 export function clearAiVaultBackgroundRestartCircuit(): void {
   if (shouldUseAiVaultServiceProcess()) {
     clearAiVaultServiceRestartCircuit()

src/shared/ai-vault-scan-error-message.test.ts

@@ -72,4 +72,13 @@ describe('describeAiVaultScanError', () => {
     expect(describeAiVaultScanError(authored)).toBe(authored)
     expect(describeAiVaultScanError('SSH relay is not ready')).toBe('SSH relay is not ready')
   })
+
+  it('removes transport wrappers before passing through an unknown message', () => {
+    expect(
+      describeAiVaultScanError(
+        "Error invoking remote method 'aiVault:listSessions': Error: SSH relay is not ready"
+      )
+    ).toBe('SSH relay is not ready')
+    expect(describeAiVaultScanError('Relay Scanner is not ready')).toBe('Scanner is not ready')
+  })
 })

src/shared/ai-vault-scan-error-message.ts

@@ -8,8 +8,8 @@ const RETRY = 'Refresh to try again.'
 
 /** Electron wraps every rejected `ipcMain.handle` before the renderer sees it. */
 const IPC_INVOKE_PREFIX = /^Error invoking remote method '[^']*': (?:\w*Error: )?/
-/** Relay-hosted scans reuse the local wording behind a `Relay ` prefix. */
-const RELAY_PREFIX = /^Relay (?=AI Vault )/
+/** Relay-hosted scan errors carry a transport-only `Relay ` prefix. */
+const RELAY_PREFIX = /^Relay /
 /** Both the fork-based service and the legacy worker thread emit this family. */
 const SCANNER = String.raw`AI Vault (?:service|scanner worker)`
 
@@ -46,5 +46,5 @@ function humanize(text: string): string | null {
 /** Returns user-facing copy, or the original text when it is already meaningful. */
 export function describeAiVaultScanError(raw: string): string {
   const text = raw.replace(IPC_INVOKE_PREFIX, '').replace(RELAY_PREFIX, '')
-  return humanize(text) ?? raw
+  return humanize(text) ?? text
 }