fix: always render wordmark via protocol auto-resolution; disable update checks by default

packages/opencode/src/cli/upgrade.ts

@@ -6,8 +6,9 @@ import { InstallationVersion } from "@opencode-ai/core/installation/version"
 import { GlobalBus } from "@/bus/global"
 
 export async function upgrade() {
+  // Neuron fork: update checks are opt-in. We do not phone home by default.
   const config = await AppRuntime.runPromise(Config.Service.use((cfg) => cfg.getGlobal()))
-  if (config.autoupdate === false || Flag.OPENCODE_DISABLE_AUTOUPDATE) return
+  if (config.autoupdate !== true || Flag.OPENCODE_DISABLE_AUTOUPDATE) return
   const method = await Installation.method()
   const latest = await Installation.latest(method).catch(() => {})
   if (!latest) return