Add a soft-deletion column on upstream OAuth 2.0 providers

crates/data-model/src/upstream_oauth2/provider.rs

@@ -141,10 +141,19 @@ pub struct UpstreamOAuthProvider {
     pub token_endpoint_signing_alg: Option<JsonWebSignatureAlg>,
     pub token_endpoint_auth_method: OAuthClientAuthenticationMethod,
     pub created_at: DateTime<Utc>,
+    pub disabled_at: Option<DateTime<Utc>>,
     pub claims_imports: ClaimsImports,
     pub additional_authorization_parameters: Vec<(String, String)>,
 }
 
+impl UpstreamOAuthProvider {
+    /// Returns `true` if the provider is enabled
+    #[must_use]
+    pub const fn enabled(&self) -> bool {
+        self.disabled_at.is_none()
+    }
+}
+
 /// Whether to set the email as verified when importing it from the upstream
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize, Default)]
 #[serde(rename_all = "lowercase")]