Add operation approval policy editor

crates/crank-core/src/operation.rs

@@ -103,6 +103,35 @@ pub struct OperationSafetyPolicy {
     pub confirmation: Option<ConfirmationPolicy>,
 }
 
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum OperationApprovalRiskLevel {
+    #[default]
+    Normal,
+    Dangerous,
+    Financial,
+    Irreversible,
+}
+
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum OperationApprovalPayloadPreviewMode {
+    #[default]
+    Summary,
+    MaskedJson,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct OperationApprovalPolicy {
+    pub required: bool,
+    pub risk_level: OperationApprovalRiskLevel,
+    pub confirmation_title: String,
+    pub confirmation_body_template: String,
+    pub ttl_seconds: u32,
+    pub show_payload_preview: bool,
+    pub payload_preview_mode: OperationApprovalPayloadPreviewMode,
+}
+
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
 pub struct ExecutionConfig {
     pub timeout_ms: u64,
@@ -115,6 +144,8 @@ pub struct ExecutionConfig {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub safety: Option<OperationSafetyPolicy>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    pub approval_policy: Option<OperationApprovalPolicy>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub auth_profile_ref: Option<AuthProfileId>,
     #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
     pub headers: BTreeMap<String, String>,
@@ -411,6 +442,7 @@ updated_at: 2026-03-25T08:10:00Z
                 response_cache: None,
                 idempotency: None,
                 safety: None,
+                approval_policy: None,
                 auth_profile_ref: Some(AuthProfileId::new("auth_01")),
                 headers: BTreeMap::new(),
             },