init: scaffold from k-template with postgres + worker

crates/bootstrap/src/config.rs

@@ -0,0 +1,28 @@
+#[derive(Debug, Clone)]
+pub struct Config {
+    pub host: String,
+    pub port: u16,
+    pub database_url: String,
+    pub jwt_secret: String,
+    pub cors_allowed_origins: Vec<String>,
+}
+
+impl Config {
+    pub fn from_env() -> Self {
+        dotenvy::dotenv().ok();
+        Self {
+            host: std::env::var("HOST").unwrap_or_else(|_| "0.0.0.0".to_string()),
+            port: std::env::var("PORT")
+                .ok()
+                .and_then(|p| p.parse().ok())
+                .unwrap_or(3000),
+            database_url: std::env::var("DATABASE_URL").expect("DATABASE_URL must be set"),
+            jwt_secret: std::env::var("JWT_SECRET").expect("JWT_SECRET must be set"),
+            cors_allowed_origins: std::env::var("CORS_ALLOWED_ORIGINS")
+                .unwrap_or_else(|_| "http://localhost:3000".to_string())
+                .split(',')
+                .map(|s| s.trim().to_string())
+                .collect(),
+        }
+    }
+}