feat(tui): add usage overlay and sidebar for displaying usage statistics and tasks

feat(tui): implement status bar with connection and turn state indicators
feat(tui): create workflow panel for agent status and progress visualization
feat(web): introduce web frontend interface with static file serving
feat(ws): add WebSocket interface for real-time communication and session management

apps/interfaces/ws/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "zesdex-ws"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+
+# WebSocket interface — real-time bidirectional communication.
+# Enables web clients and other WS-capable consumers to connect
+# and participate in sessions.
+[dependencies]
+zesdex-domain = { path = "../../domain" }
+zesdex-application = { path = "../../application" }
+zesdex-infrastructure = { path = "../../infrastructure" }
+
+serde.workspace = true
+serde_json.workspace = true
+chrono.workspace = true
+uuid.workspace = true
+anyhow.workspace = true
+tokio.workspace = true
+tracing.workspace = true
+axum = { workspace = true, features = ["ws"] }
+futures-util.workspace = true