feat(agentcompany-rust): scaffold native shell and runtime bridge

AgentCompany-Rust/crates/app/src/main.rs

@@ -0,0 +1,13 @@
+use anyhow::Result;
+use parking_lot::Mutex;
+use std::sync::Arc;
+use storage::ProfileStore;
+use support::paths::resolve_profile_dir;
+
+fn main() -> Result<()> {
+    let profile_dir = resolve_profile_dir()?;
+    let store = Arc::new(Mutex::new(ProfileStore::open(&profile_dir)?));
+    let snapshot = store.lock().snapshot()?;
+    app_ui::launch(store, snapshot);
+    Ok(())
+}