docs: update README and docs for v0.6.0 architecture and deployment, preserve current server/shared/wasm updates

server/src/routes/init.rs

@@ -9,7 +9,6 @@ pub async fn handler(
     Json(payload): Json<InitRequest>,
 ) -> Result<Json<InitResponse>, SessionError> {
     let config = state.get_config();
-    let conn = state.db_pool.get()?;
-    let resp = crate::session::create_session(&conn, &config, &payload.public_key)?;
+    let resp = crate::session::create_session(&state.db_pool, &config, &payload.public_key)?;
     Ok(Json(resp))
 }