Refactor codebase for consistency and readability

- Standardize array and vector formatting for clarity.
- Adjust spacing and indentation in examples and TUI code.
- Ensure proper newline usage across files (e.g., LICENSE, TOML files, etc.).
- Simplify `.to_string()` and `.ok()` calls for brevity.

crates/owlen-ollama/Cargo.toml

@@ -31,4 +31,4 @@ uuid = { workspace = true }
 async-trait = { workspace = true }
 
 [dev-dependencies]
-tokio-test = { workspace = true }
+tokio-test = { workspace = true }