Modify application structure (#19)

Reviewed-on: #19
Co-authored-by: kdeng00 <kundeng00@pm.me>
Co-committed-by: kdeng00 <kundeng00@pm.me>

Cargo.toml

@@ -6,4 +6,6 @@ rust-version = "1.86"
 
 [dependencies]
 tokio = { version = "1.44.1", features = ["full"] }
+reqwest = { version = "0.12.19" }
+dotenvy = { version = "0.15.7" }
 icarus_models = { git = "ssh://git@git.kundeng.us/phoenix/icarus_models.git", tag = "v0.4.3" }