fix: add explicit [lib]/[[bin]] sections to Cargo.toml for rust-analyzer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Cargo.toml

@@ -3,6 +3,14 @@ name = "claudbg"
 version = "0.1.0"
 edition = "2024"
 
+[lib]
+name = "claudbg"
+path = "src/lib.rs"
+
+[[bin]]
+name = "claudbg"
+path = "src/main.rs"
+
 [dependencies]
 clap        = { version = "4.6",  features = ["derive"] }
 tokio       = { version = "1.50", features = ["full"] }