style: apply cargo fmt to entire codebase

Standardize code formatting across all 173 Rust source files
using rustfmt. No functional changes - purely cosmetic.

This establishes a consistent code style baseline for the
project going forward.

src/bin/migrate.rs

@@ -7,7 +7,7 @@ use std::time::Duration;
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     // Configure logging
     tracing_subscriber::fmt::init();
-    
+
     // Load environment variables (.env.local first, then .env)
     if let Ok(path) = env::var("DOTENV_PATH") {
         dotenv::from_path(Path::new(&path)).ok();
@@ -15,35 +15,35 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         dotenv::from_filename(".env.local").ok();
         dotenv::dotenv().ok();
     }
-    
+
     // Get DATABASE_URL from environment variables
     let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be configured");
-    
+
     println!("Connecting to the database...");
-    
+
     // Create connection pool
     let pool = PgPoolOptions::new()
         .max_connections(5)
         .acquire_timeout(Duration::from_secs(10))
         .connect(&database_url)
         .await?;
-    
+
     // Run migrations
     println!("Running migrations...");
-    
+
     // Get the directory from an environment variable or use a default value
     let migrations_dir = env::var("MIGRATIONS_DIR").unwrap_or_else(|_| "./migrations".to_string());
     println!("Migrations directory: {}", migrations_dir);
-    
+
     // Create a migrator
     let migrator = sqlx::migrate::Migrator::new(Path::new(&migrations_dir))
         .await
         .expect("Could not create the migrator");
-    
+
     // Run all pending migrations
     migrator.run(&pool).await?;
-    
+
     println!("Migrations applied successfully");
-    
+
     Ok(())
-}
+}