Add autoshare configuration and improve run command UI

Enables automatic session sharing via global config or flag, enhances UI with logo display and provider/model info positioning.

🤖 Generated with [opencode](https://opencode.ai)

Co-Authored-By: opencode <noreply@opencode.ai>

packages/opencode/src/global/config.ts

@@ -6,6 +6,7 @@ import path from "path"
 export namespace GlobalConfig {
   export const Info = z.object({
     autoupdate: z.boolean().optional(),
+    autoshare: z.boolean().optional(),
     provider: z.string().optional(),
     model: z.string().optional(),
   })