refactor(tests): reformat code and update dependency management

- Reorganized import statements in adapter tests for better readability
- Replaced or_insert_with(Vec::new) with or_default() in test closures
- Updated Cargo.lock with new dependency versions and checksums
- Added TLS features to tonic dependency configuration
- Included sqlx, chrono, and uuid dependencies with specific features
- Added jsonwebtoken and arc-swap as project dependencies
- Reformatted assertion statements to comply with line length limits
- Adjusted base64 import order in engine codec module
- Updated protobuf include statement formatting

rpc/config.rs

@@ -0,0 +1,65 @@
+//! gRPC client configuration for connecting to appks core services.
+//!
+//! Reads the appks address and timeout from environment variables.
+
+use std::env;
+
+/// Configuration for appks gRPC connections.
+#[derive(Debug, Clone)]
+pub struct RpcConfig {
+    /// appks gRPC endpoint, e.g. `http://localhost:50051`.
+    pub appks_addr: String,
+    /// Connection establishment timeout (seconds).
+    pub connect_timeout_secs: u64,
+    /// Optional CA certificate PEM path for appks mTLS.
+    pub tls_ca_cert_path: Option<String>,
+    /// Optional client certificate PEM path for appks mTLS.
+    pub tls_client_cert_path: Option<String>,
+    /// Optional client private key PEM path for appks mTLS.
+    pub tls_client_key_path: Option<String>,
+    /// TLS domain name used for certificate verification.
+    pub tls_domain_name: Option<String>,
+}
+
+impl RpcConfig {
+    /// Build config from environment variables with defaults.
+    pub fn from_env() -> Self {
+        Self {
+            appks_addr: env::var("APPKS_GRPC_ADDR")
+                .unwrap_or_else(|_| "http://localhost:50051".to_string()),
+            connect_timeout_secs: env::var("APPKS_GRPC_TIMEOUT")
+                .ok()
+                .and_then(|v| v.parse().ok())
+                .unwrap_or(10),
+            tls_ca_cert_path: env::var("APPKS_GRPC_TLS_CA_CERT").ok(),
+            tls_client_cert_path: env::var("APPKS_GRPC_TLS_CLIENT_CERT").ok(),
+            tls_client_key_path: env::var("APPKS_GRPC_TLS_CLIENT_KEY").ok(),
+            tls_domain_name: env::var("APPKS_GRPC_TLS_DOMAIN").ok(),
+        }
+    }
+}
+
+impl Default for RpcConfig {
+    fn default() -> Self {
+        Self::from_env()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_default_config() {
+        let cfg = RpcConfig {
+            appks_addr: "http://localhost:50051".to_string(),
+            connect_timeout_secs: 10,
+            tls_ca_cert_path: None,
+            tls_client_cert_path: None,
+            tls_client_key_path: None,
+            tls_domain_name: None,
+        };
+        assert_eq!(cfg.connect_timeout_secs, 10);
+        assert!(cfg.appks_addr.starts_with("http"));
+    }
+}