refactor: remove remote sequence CLI command

Collapse remote input to `tvctl remote key` so single-key and multi-key
usage share one public command while keeping the paced daemon path
underneath.

src/daemon/ipc.rs

@@ -169,8 +169,15 @@ pub struct DaemonStatus {
     pub socket: String,
     /// Whether the HTTP API is enabled.
     pub http_enabled: bool,
+    /// The HTTP bind host.
+    pub http_host: String,
+    /// The HTTP bind port.
+    pub http_port: u16,
     /// The number of known devices.
     pub device_count: usize,
+    /// The current default device, if configured.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub default_device: Option<String>,
 }
 
 /// Discovery results returned by the daemon.

src/daemon/mod.rs

@@ -218,7 +218,13 @@ async fn handle_request(
                     pid: std::process::id(),
                     socket: guard.paths.socket_file.display().to_string(),
                     http_enabled: guard.config.daemon.http_enabled,
+                    http_host: guard.config.daemon.http_host.clone(),
+                    http_port: guard.config.daemon.http_port,
                     device_count: guard.registry.devices.len(),
+                    default_device: guard
+                        .registry
+                        .default_device()
+                        .map(|device| device.name.clone()),
                 }),
                 false,
             )