//! Canonical TUI session state shared across app-server routing, chat display, and status UI.//!//! The app-server API is the boundary for session lifecycle events. Once those responses enter//! TUI, this module holds the small internal state shape used by app orchestration and widgets.use std::path::PathBuf;use codex_app_server_protocol::AskForApproval;use codex_protocol::ThreadId;use codex_protocol::config_types::CollaborationMode;use codex_protocol::config_types::Personality;use codex_protocol::models::ActivePermissionProfile;use codex_protocol::models::PermissionProfile;use codex_utils_absolute_path::AbsolutePathBuf;#[derive(Debug, Clone, PartialEq)]pub(crate) struct SessionNetworkProxyRuntime {    pub(crate) http_addr: String,    pub(crate) socks_addr: String,}#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]pub(crate) struct MessageHistoryMetadata {    pub(crate) log_id: u64,    pub(crate) entry_count: usize,}#[derive(Debug, Clone, PartialEq)]pub(crate) struct ThreadSessionState {    pub(crate) thread_id: ThreadId,    pub(crate) forked_from_id: Option<ThreadId>,    pub(crate) fork_parent_title: Option<String>,    pub(crate) thread_name: Option<String>,    pub(crate) model: String,    pub(crate) model_provider_id: String,    pub(crate) service_tier: Option<String>,    pub(crate) approval_policy: AskForApproval,    pub(crate) approvals_reviewer: codex_protocol::config_types::ApprovalsReviewer,    /// Permission snapshot used by TUI display surfaces. Legacy app-server    /// responses are converted to a profile at ingestion time using the    /// response cwd so cached sessions do not reinterpret cwd-bound grants.    /// Turn requests must not treat this snapshot as a local permission    /// override unless the user explicitly changed permissions in the TUI.    pub(crate) permission_profile: PermissionProfile,    /// Named or implicit built-in profile that produced `permission_profile`,    /// when the server knows it.    pub(crate) active_permission_profile: Option<ActivePermissionProfile>,    pub(crate) cwd: AbsolutePathBuf,    pub(crate) runtime_workspace_roots: Vec<AbsolutePathBuf>,    pub(crate) instruction_source_paths: Vec<AbsolutePathBuf>,    pub(crate) reasoning_effort: Option<codex_protocol::openai_models::ReasoningEffort>,    pub(crate) collaboration_mode: Option<Box<CollaborationMode>>,    pub(crate) personality: Option<Personality>,    pub(crate) message_history: Option<MessageHistoryMetadata>,    pub(crate) network_proxy: Option<SessionNetworkProxyRuntime>,    pub(crate) rollout_path: Option<PathBuf>,}impl ThreadSessionState {    pub(crate) fn set_cwd_retargeting_implicit_runtime_workspace_root(        &mut self,        cwd: AbsolutePathBuf,    ) {        let previous_cwd = std::mem::replace(&mut self.cwd, cwd.clone());        if !self.runtime_workspace_roots.contains(&previous_cwd) {            return;        }        let previous_roots = std::mem::take(&mut self.runtime_workspace_roots);        self.runtime_workspace_roots.push(cwd);        for root in previous_roots {            if root != previous_cwd && !self.runtime_workspace_roots.contains(&root) {                self.runtime_workspace_roots.push(root);            }        }    }}