feat: Agent Orchestrator — multi-project agent dashboard

Tauri + Svelte 5 + Rust application for orchestrating multiple AI coding agents.
Includes Claude, Aider, Codex, and Ollama provider support, multi-agent
communication (btmsg/bttask), session anchors, plugin sandbox, FTS5 search,
Landlock sandboxing, and 507 vitest + 110 cargo tests.

src-tauri/src/commands/misc.rs

@@ -0,0 +1,46 @@
+// Miscellaneous commands — CLI args, URL opening, frontend telemetry
+
+#[tauri::command]
+pub fn cli_get_group() -> Option<String> {
+    let args: Vec<String> = std::env::args().collect();
+    let mut i = 1;
+    while i < args.len() {
+        if args[i] == "--group" {
+            if i + 1 < args.len() {
+                return Some(args[i + 1].clone());
+            }
+        } else if let Some(val) = args[i].strip_prefix("--group=") {
+            return Some(val.to_string());
+        }
+        i += 1;
+    }
+    None
+}
+
+#[tauri::command]
+pub fn open_url(url: String) -> Result<(), String> {
+    if !url.starts_with("http://") && !url.starts_with("https://") {
+        return Err("Only http/https URLs are allowed".into());
+    }
+    std::process::Command::new("xdg-open")
+        .arg(&url)
+        .spawn()
+        .map_err(|e| format!("Failed to open URL: {e}"))?;
+    Ok(())
+}
+
+#[tauri::command]
+pub fn is_test_mode() -> bool {
+    std::env::var("BTERMINAL_TEST").map_or(false, |v| v == "1")
+}
+
+#[tauri::command]
+pub fn frontend_log(level: String, message: String, context: Option<serde_json::Value>) {
+    match level.as_str() {
+        "error" => tracing::error!(source = "frontend", ?context, "{message}"),
+        "warn" => tracing::warn!(source = "frontend", ?context, "{message}"),
+        "info" => tracing::info!(source = "frontend", ?context, "{message}"),
+        "debug" => tracing::debug!(source = "frontend", ?context, "{message}"),
+        _ => tracing::trace!(source = "frontend", ?context, "{message}"),
+    }
+}