feat(bug-report): print bug report URL in terminal instead of opening browser (#510) (#528)

Solves #510 
This PR changes the `/bug` command to print the URL into the terminal
(so it works in headless sessions) instead of trying to open a browser.

---------

Co-authored-by: Thibault Sottiaux <tibo@openai.com>

codex-cli/src/utils/slash-commands.ts

@@ -23,7 +23,10 @@ export const SLASH_COMMANDS: Array<SlashCommand> = [
   { command: "/help", description: "Show list of commands" },
   { command: "/model", description: "Open model selection panel" },
   { command: "/approval", description: "Open approval mode selection panel" },
-  { command: "/bug", description: "Generate a prefilled GitHub bug report" },
+  {
+    command: "/bug",
+    description: "Generate a prefilled GitHub issue URL with session log",
+  },
   {
     command: "/diff",
     description: