Refactor comments and update session identity logic

Revised comments for clarity in main.rs and session_identify.rs. Included an explanatory note about using third-party hosts for signature verification. Removed an unused `.toak-ignore` file.

.toak-ignore

@@ -1,3 +0,0 @@
-package.json
-genaisrc/genaiscript.d.ts
-.toak-ignore

src/main.rs

@@ -17,7 +17,7 @@ async fn main() {
     // Initialize logging
     init_logging();
 
-    // Load configuration
+    // init server configuration
     let config = AppConfig::new();
 
     // Create router with all routes

src/session_identify.rs

@@ -14,6 +14,8 @@ pub struct SessionIdentity {
     pub user: Value
 }
 
+// for a production setup, use a 3rd party host to verify the signature
+// I removed in this version because the identity server I built is not open source yet
 pub async fn session_identify(session_token: &str) -> Result<SessionIdentity> {
     let session_data_base64 = session_token.split('.').nth(0).ok_or_else(|| anyhow::anyhow!("Invalid session data format"))?;
     // println!("session_data_base64: {}", session_data_base64);