fix: redesign chat example && fix search cors erros. (#40)

Signed-off-by: wiseaidev <oss@wiseai.dev>

Author: wiseaidev

Cargo.lock

@@ -30,7 +30,7 @@ chrono = { version = "0.4.44", features = ["serde"] }
 uuid = { version = "1.23.1", features = ["v4"] }
 derivative = "2.2.0"
 clap = { version = "4.6.1", features = ["derive"] }
-duckduckgo = "0.3.1"
+duckduckgo = "0.3.2"
 lopdf = { version = "0.40.0" }
 reqwest = { version = "0.13", features = ["json"] }
 pyo3 = { version = "0.28.3", features = ["extension-module"] }