Add Project Home, Auth Bridge, shared auth token, and Tier-1 polish

Project Home (DESIGN-REVIEW §B2): the project is promoted from a 280px
sidebar card to a first-class main-area view. ProjectCard.tsx (1,257
lines) is replaced by a select-only ProjectRow plus tabs for Overview,
Sessions, Automation, Config and Files. The PortMappings, FileManager
and ContainerProgress modals are absorbed rather than reimplemented.
Config gains a Saved/Saving/Failed indicator — save-on-blur failures
previously reached only console.error.

Tier-1 polish (DESIGN-REVIEW §A): new elevation, muted-accent, disabled
and focus-ring tokens; a global :focus-visible ring with every
focus:outline-none removed; filled buttons moved to --accent-emphasis
and white-on-success toggles retired, fixing three WCAG AA failures
(2.1:1, 2.5:1, 2.4:1); a shared Modal primitive with role="dialog",
focus trap and restore, adopted by all remaining modals; status
indicators that carry a glyph and word rather than colour alone.

Ctrl+Shift+W closes a tab, deliberately not Ctrl+W — that is readline's
kill-word, used constantly in the terminal this app is built around.

Auth Bridge: a general loopback-callback bridge so browser logins run
inside a container (aws sso login, Concourse fly login, claude login)
can complete against the host browser. Listeners are discovered from
/proc/net/tcp{,6} — ss/netstat/lsof are absent from the image — bound on
host 127.0.0.1 only, and tunnelled in over the Docker API via socat,
which keeps working on Docker Desktop where container IPs are not
routable. Falls back to [::1] because Node resolves localhost to IPv6
first, so claude login often binds ::1 alone. Opt-in per project.

This extracts create_attached_exec() and moves the existing terminal
session path onto it, so there is one attached-exec implementation
rather than two.

Shared auth token: `claude setup-token` is run in a container, the token
is stored in the OS keychain and injected as CLAUDE_CODE_OAUTH_TOKEN
into Anthropic-backend projects. Contrary to the initial design note,
setup-token uses an Anthropic-hosted redirect and blocks on a stdin
paste prompt rather than a loopback callback, so a stdin command is
required for the flow to complete.

The token is never logged, never returned to the frontend, and is
redacted from the streamed output with a stateful matcher that withholds
any tail that could still grow into a secret. Change detection uses a
random rotation id rather than a hash, since a hash in a docker-inspect
readable label would be an offline verification oracle.

Frontend 33 -> 51 tests; Rust 34 tests. Both builds clean.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app/src-tauri/src/lib.rs

@@ -1,3 +1,4 @@
+mod auth_bridge;
 mod commands;
 mod docker;
 mod install_helper;
@@ -8,6 +9,7 @@ pub mod web_terminal;
 
 use std::sync::Arc;
 
+use auth_bridge::AuthBridgeManager;
 use docker::exec::ExecSessionManager;
 use storage::projects_store::ProjectsStore;
 use storage::settings_store::SettingsStore;
@@ -18,6 +20,7 @@ pub struct AppState {
     pub projects_store: Arc<ProjectsStore>,
     pub settings_store: Arc<SettingsStore>,
     pub exec_manager: Arc<ExecSessionManager>,
+    pub auth_bridge: Arc<AuthBridgeManager>,
     pub web_terminal_server: Arc<tokio::sync::Mutex<Option<WebTerminalServer>>>,
 }
 
@@ -39,6 +42,7 @@ pub fn run() {
         }
     });
     let exec_manager = Arc::new(ExecSessionManager::new());
+    let auth_bridge = Arc::new(AuthBridgeManager::new());
 
     // Clone Arcs for the setup closure (web terminal auto-start)
     let projects_store_setup = projects_store.clone();
@@ -53,6 +57,7 @@ pub fn run() {
             projects_store,
             settings_store,
             exec_manager,
+            auth_bridge,
             web_terminal_server: Arc::new(tokio::sync::Mutex::new(None)),
         })
         .setup(move |app| {
@@ -136,6 +141,8 @@ pub fn run() {
                     let _ = docker::stt::stop_stt_container().await;
                     // Close all exec sessions
                     state.exec_manager.close_all_sessions().await;
+                    // Release every host loopback port held by the auth bridge
+                    state.auth_bridge.stop_all().await;
                 });
             }
         })
@@ -155,6 +162,14 @@ pub fn run() {
             commands::project_commands::stop_project_container,
             commands::project_commands::rebuild_project_container,
             commands::project_commands::reconcile_project_statuses,
+            // Auth bridge
+            commands::auth_bridge_commands::set_auth_bridge_enabled,
+            commands::auth_bridge_commands::get_auth_bridge_status,
+            // Shared Claude Code auth token
+            commands::auth_token_commands::acquire_claude_token,
+            commands::auth_token_commands::submit_claude_token_code,
+            commands::auth_token_commands::has_claude_token,
+            commands::auth_token_commands::clear_claude_token,
             // Settings
             commands::settings_commands::get_settings,
             commands::settings_commands::update_settings,