Synced from monorepo

Changes:
- Persist submitter identity for /feedback
- Let custom models use rotating tokens from named auth providers
- Template stale tool/param name literals in server-native descriptions
- Minimal mode commits thinking in full, lookups as one-liners
- Tighten durable append internals
- Nudge model to end turn on no-op bash commands
- Per-fetch signing nonce in the managed-config envelope, with a server-side replay probe
- Include working tree in startup status

crates/codegen/xai-chat-state/src/actor/request_builder.rs

@@ -598,12 +598,13 @@ mod tests {
 
     fn has_placeholder(item: &ConversationItem) -> bool {
         matches!(
-            item,
-            ConversationItem::User(u) if u.content.iter().any(|p| matches!(
-                p,
-                ContentPart::Text { text } if text.as_ref() == IMAGE_COMPACT_PLACEHOLDER
-            ))
-        )
+                    item,
+                    ConversationItem::User(u) if u.content.iter().any(|p| matches!(
+                        p,
+                        ContentPart::Text { text }
+        if text.as_ref() == IMAGE_COMPACT_PLACEHOLDER
+                    ))
+                )
     }
 
     // Images are sized ~100 KB so the ~235 B placeholder that replaces an