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/gateway/Cargo.toml

@@ -0,0 +1,44 @@
+[package]
+name = "zesdex-gateway"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+
+# Gateway binary — assembles domain + application + infrastructure
+# + selected interface(s) into a running application process.
+# This is the main entry point that wires everything together.
+[[bin]]
+name = "zesdex"
+path = "src/main.rs"
+
+[[bin]]
+name = "seed"
+path = "src/bin/seed.rs"
+
+[[bin]]
+name = "migrate"
+path = "src/bin/migrate.rs"
+
+[dependencies]
+zesdex-domain = { path = "../domain" }
+zesdex-application = { path = "../application" }
+zesdex-infrastructure = { path = "../infrastructure" }
+zesdex-tui = { path = "../interfaces/tui" }
+zesdex-api = { path = "../interfaces/api" }
+zesdex-daemon = { path = "../interfaces/daemon" }
+zesdex-ws = { path = "../interfaces/ws" }
+zesdex-grpc = { path = "../interfaces/grpc" }
+zesdex-web = { path = "../interfaces/web" }
+
+serde.workspace = true
+serde_json.workspace = true
+chrono.workspace = true
+uuid.workspace = true
+anyhow.workspace = true
+tokio.workspace = true
+tracing.workspace = true
+tracing-subscriber.workspace = true
+dirs.workspace = true
+rusqlite.workspace = true
+axum.workspace = true
+clap = { version = "4", features = ["derive"] }