feat: split codex-common into smaller utils crates (#11422)

We are removing feature-gated shared crates from the `codex-rs`
workspace. `codex-common` grouped several unrelated utilities behind
`[features]`, which made dependency boundaries harder to reason about
and worked against the ongoing effort to eliminate feature flags from
workspace crates.

Splitting these utilities into dedicated crates under `utils/` aligns
this area with existing workspace structure and keeps each dependency
explicit at the crate boundary.

## What changed

- Removed `codex-rs/common` (`codex-common`) from workspace members and
workspace dependencies.
- Added six new utility crates under `codex-rs/utils/`:
  - `codex-utils-cli`
  - `codex-utils-elapsed`
  - `codex-utils-sandbox-summary`
  - `codex-utils-approval-presets`
  - `codex-utils-oss`
  - `codex-utils-fuzzy-match`
- Migrated the corresponding modules out of `codex-common` into these
crates (with tests), and added matching `BUILD.bazel` targets.
- Updated direct consumers to use the new crates instead of
`codex-common`:
  - `codex-rs/cli`
  - `codex-rs/tui`
  - `codex-rs/exec`
  - `codex-rs/app-server`
  - `codex-rs/mcp-server`
  - `codex-rs/chatgpt`
  - `codex-rs/cloud-tasks`
- Updated workspace lockfile entries to reflect the new dependency graph
and removal of `codex-common`.

codex-rs/cli/src/debug_sandbox.rs

@@ -5,7 +5,6 @@ mod seatbelt;
 
 use std::path::PathBuf;
 
-use codex_common::CliConfigOverrides;
 use codex_core::config::Config;
 use codex_core::config::ConfigOverrides;
 use codex_core::exec_env::create_env;
@@ -14,6 +13,7 @@ use codex_core::landlock::spawn_command_under_linux_sandbox;
 use codex_core::seatbelt::spawn_command_under_seatbelt;
 use codex_core::spawn::StdioPolicy;
 use codex_protocol::config_types::SandboxMode;
+use codex_utils_cli::CliConfigOverrides;
 
 use crate::LandlockCommand;
 use crate::SeatbeltCommand;

codex-rs/cli/src/lib.rs

@@ -3,7 +3,7 @@ mod exit_status;
 pub mod login;
 
 use clap::Parser;
-use codex_common::CliConfigOverrides;
+use codex_utils_cli::CliConfigOverrides;
 
 #[derive(Debug, Parser)]
 pub struct SeatbeltCommand {

codex-rs/cli/src/login.rs

@@ -1,4 +1,3 @@
-use codex_common::CliConfigOverrides;
 use codex_core::CodexAuth;
 use codex_core::auth::AuthCredentialsStoreMode;
 use codex_core::auth::AuthMode;
@@ -10,6 +9,7 @@ use codex_login::ServerOptions;
 use codex_login::run_device_code_login;
 use codex_login::run_login_server;
 use codex_protocol::config_types::ForcedLoginMethod;
+use codex_utils_cli::CliConfigOverrides;
 use std::io::IsTerminal;
 use std::io::Read;
 use std::path::PathBuf;

codex-rs/cli/src/main.rs

@@ -16,7 +16,6 @@ use codex_cli::login::run_login_with_chatgpt;
 use codex_cli::login::run_login_with_device_code;
 use codex_cli::login::run_logout;
 use codex_cloud_tasks::Cli as CloudTasksCli;
-use codex_common::CliConfigOverrides;
 use codex_exec::Cli as ExecCli;
 use codex_exec::Command as ExecCommand;
 use codex_exec::ReviewArgs;
@@ -26,6 +25,7 @@ use codex_tui::AppExitInfo;
 use codex_tui::Cli as TuiCli;
 use codex_tui::ExitReason;
 use codex_tui::update_action::UpdateAction;
+use codex_utils_cli::CliConfigOverrides;
 use owo_colors::OwoColorize;
 use std::io::IsTerminal;
 use std::path::PathBuf;
@@ -1248,11 +1248,11 @@ mod tests {
         assert_eq!(interactive.config_profile.as_deref(), Some("my-profile"));
         assert_matches!(
             interactive.sandbox_mode,
-            Some(codex_common::SandboxModeCliArg::WorkspaceWrite)
+            Some(codex_utils_cli::SandboxModeCliArg::WorkspaceWrite)
         );
         assert_matches!(
             interactive.approval_policy,
-            Some(codex_common::ApprovalModeCliArg::OnRequest)
+            Some(codex_utils_cli::ApprovalModeCliArg::OnRequest)
         );
         assert!(interactive.full_auto);
         assert_eq!(

codex-rs/cli/src/mcp_cmd.rs

@@ -5,8 +5,6 @@ use anyhow::Result;
 use anyhow::anyhow;
 use anyhow::bail;
 use clap::ArgGroup;
-use codex_common::CliConfigOverrides;
-use codex_common::format_env_display::format_env_display;
 use codex_core::config::Config;
 use codex_core::config::edit::ConfigEditsBuilder;
 use codex_core::config::find_codex_home;
@@ -19,6 +17,8 @@ use codex_core::mcp::auth::oauth_login_support;
 use codex_core::protocol::McpAuthStatus;
 use codex_rmcp_client::delete_oauth_tokens;
 use codex_rmcp_client::perform_oauth_login;
+use codex_utils_cli::CliConfigOverrides;
+use codex_utils_cli::format_env_display::format_env_display;
 
 /// Subcommands:
 /// - `list`   — list configured servers (with `--json`)