Improve feedback (#5661)

<img width="1099" height="153" alt="image"
src="https://github.com/user-attachments/assets/2c901884-8baf-4b1b-b2c4-bcb61ff42be8"
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<img width="1082" height="125" alt="image"
src="https://github.com/user-attachments/assets/6336e6c9-9ace-46df-a383-a807ceffa524"
/>

<img width="1102" height="103" alt="image"
src="https://github.com/user-attachments/assets/78883682-7e44-4fa3-9e04-57f7df4766fd"
/>

codex-rs/core/src/error.rs

@@ -55,7 +55,7 @@ pub enum SandboxErr {
 #[derive(Error, Debug)]
 pub enum CodexErr {
     // todo(aibrahim): git rid of this error carrying the dangling artifacts
-    #[error("turn aborted")]
+    #[error("turn aborted. Something went wrong? Hit `/feedback` to report the issue.")]
     TurnAborted {
         dangling_artifacts: Vec<ProcessedResponseItem>,
     },
@@ -91,7 +91,7 @@ pub enum CodexErr {
 
     /// Returned by run_command_stream when the user pressed Ctrl‑C (SIGINT). Session uses this to
     /// surface a polite FunctionCallOutput back to the model instead of crashing the CLI.
-    #[error("interrupted (Ctrl-C)")]
+    #[error("interrupted (Ctrl-C). Something went wrong? Hit `/feedback` to report the issue.")]
     Interrupted,
 
     /// Unexpected HTTP status code.