Initial commit: Clean workspace without heavy binaries

shared/common/src/auth.rs

@@ -0,0 +1,26 @@
+use jsonwebtoken::{encode, Header, EncodingKey};
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+use chrono::{Utc, Duration};
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Claims {
+    pub sub: Uuid,
+    pub exp: i64,
+    pub role: String,
+}
+
+pub fn create_jwt(user_id: Uuid, role: &str) -> Result<String, jsonwebtoken::errors::Error> {
+    let expiration = Utc::now()
+        .checked_add_signed(Duration::hours(24))
+        .expect("valid timestamp")
+        .timestamp();
+
+    let claims = Claims {
+        sub: user_id,
+        exp: expiration,
+        role: role.to_string(),
+    };
+
+    encode(&Header::default(), &claims, &EncodingKey::from_secret("secret".as_ref()))
+}