style: Apply rustfmt with stable-only config

- Fixed rustfmt.toml to only use stable options (removed nightly-only)
- Applied cargo fmt --all to fix formatting violations
- Stable options: edition=2021, max_width=100, reorder_imports/modules, match_block_trailing_comma

crates/pm-web/src/routes/mod.rs

@@ -1,15 +1,15 @@
 //! Route modules for the pm-web API.
 pub mod auth;
+pub mod azure_sso;
 pub mod ca;
 pub mod discovery;
 pub mod groups;
 pub mod hosts;
-pub mod maintenance_windows;
 pub mod jobs;
+pub mod maintenance_windows;
+pub mod settings;
 pub mod status;
 pub mod users;
-pub mod settings;
-pub mod azure_sso;
 pub mod ws;
 
 pub mod reports;