fix(codex): recover legacy thread names

src-tauri/src/cli/commands/sessions.rs

@@ -16,6 +16,12 @@ use crate::session_manager::{self, SessionMessage, SessionMessageBatch, SessionM
 
 #[derive(Subcommand, Debug, Clone)]
 pub enum SessionsCommand {
+    /// Repair legacy Codex session names (dry-run unless --apply is passed)
+    RepairCodexNames {
+        /// Apply the reported repairs to the Codex state database
+        #[arg(long)]
+        apply: bool,
+    },
     /// List saved assistant sessions
     List {
         /// Scan a specific provider instead of --app
@@ -126,6 +132,7 @@ struct SessionMessagesOutput<'a> {
 
 pub fn execute(cmd: SessionsCommand, app: Option<AppType>) -> Result<(), AppError> {
     match cmd {
+        SessionsCommand::RepairCodexNames { apply } => repair_codex_names(apply),
         SessionsCommand::List {
             provider,
             all,
@@ -164,6 +171,24 @@ pub fn execute(cmd: SessionsCommand, app: Option<AppType>) -> Result<(), AppErro
     }
 }
 
+fn repair_codex_names(apply: bool) -> Result<(), AppError> {
+    let changed = crate::codex_history_migration::repair_codex_legacy_thread_names(apply)?;
+    if apply {
+        println!(
+            "{}",
+            success(&format!("Repaired {changed} Codex session name(s)."))
+        );
+    } else {
+        println!(
+            "{}",
+            info(&format!(
+                "Dry run: {changed} Codex session name(s) can be repaired. Re-run with --apply to write changes."
+            ))
+        );
+    }
+    Ok(())
+}
+
 fn list_sessions(
     app: Option<AppType>,
     provider: Option<AppType>,

src-tauri/src/cli/mod.rs

@@ -580,6 +580,30 @@ mod tests {
         }
     }
 
+    #[test]
+    fn parses_sessions_repair_codex_names_as_dry_run_by_default() {
+        let cli = Cli::parse_from(["cc-switch", "sessions", "repair-codex-names"]);
+
+        match cli.command {
+            Some(Commands::Sessions(
+                super::commands::sessions::SessionsCommand::RepairCodexNames { apply },
+            )) => assert!(!apply),
+            _ => panic!("expected sessions repair-codex-names command"),
+        }
+    }
+
+    #[test]
+    fn parses_sessions_repair_codex_names_apply_flag() {
+        let cli = Cli::parse_from(["cc-switch", "sessions", "repair-codex-names", "--apply"]);
+
+        match cli.command {
+            Some(Commands::Sessions(
+                super::commands::sessions::SessionsCommand::RepairCodexNames { apply },
+            )) => assert!(apply),
+            _ => panic!("expected sessions repair-codex-names command"),
+        }
+    }
+
     #[test]
     fn parses_sessions_list_with_backend_provider_id() {
         let cli = Cli::parse_from(["cc-switch", "sessions", "list", "--provider", "opencode"]);