Expose resumable misalignment details through app server (#40952)

## Why

App-server clients need the explanation and steering instruction returned with a
misalignment policy violation to offer a user-confirmed continuation. Missing or
incomplete details must continue to behave as a terminal block.

## What changed

- Parse optional misalignment classification, explanation, and steering details
  from streamed and HTTP Responses errors and propagate them through core errors.
- Include the details in live app-server `error` and `turn/completed` payloads and
  export the corresponding protocol schemas and TypeScript types.
- Keep explanations and steering messages out of serialized rollout events and
  redact them from debug output.
- Document how clients can resume with `turn/start` after user confirmation.

## Testing

- Cover streamed, HTTP, and WebSocket-wrapped errors, including malformed and
  classification-only details.
- Verify live app-server notifications expose resumable details without writing
  the explanation or steering message to the rollout.

GitOrigin-RevId: 329258a444c2cd91d0c57ab1720830b33ddcfac5

codex-rs/protocol/src/error.rs

@@ -7,6 +7,7 @@ use crate::exec_output::ExecToolCallOutput;
 use crate::network_policy::NetworkPolicyDecisionPayload;
 use crate::protocol::CodexErrorInfo;
 use crate::protocol::ErrorEvent;
+use crate::protocol::MisalignmentErrorDetails;
 use crate::protocol::RateLimitReachedType;
 use crate::protocol::RateLimitSnapshot;
 use crate::protocol::TruncationPolicy;
@@ -136,7 +137,10 @@ pub enum CodexErrorDetails {
     #[error("{message}")]
     CyberPolicy { message: String },
     #[error("{message}")]
-    MisalignmentPolicyViolation { message: String },
+    MisalignmentPolicyViolation {
+        message: String,
+        misalignment: Option<MisalignmentErrorDetails>,
+    },
     #[error("{0}")]
     ResponseStreamFailed(ResponseStreamFailed),
     #[error("{0}")]
@@ -469,6 +473,12 @@ impl CodexErr {
         ErrorEvent {
             message,
             codex_error_info: Some(self.to_codex_protocol_error()),
+            misalignment: match &self.details {
+                CodexErrorDetails::MisalignmentPolicyViolation { misalignment, .. } => {
+                    misalignment.clone()
+                }
+                _ => None,
+            },
         }
     }