feat: control-driven SAST — LUT + grounded LLM triage over tool findings (#213)

compliance-core/src/models/finding.rs

@@ -76,6 +76,10 @@ pub struct Finding {
     pub triage_rationale: Option<String>,
     /// Developer feedback on finding quality
     pub developer_feedback: Option<String>,
+    /// Compliance control ids this finding is evidence for (stamped by control
+    /// triage against the `control-map` LUT). Empty when unmapped.
+    #[serde(default)]
+    pub control_refs: Vec<String>,
     #[serde(with = "super::serde_helpers::bson_datetime")]
     pub created_at: DateTime<Utc>,
     #[serde(with = "super::serde_helpers::bson_datetime")]
@@ -118,6 +122,7 @@ impl Finding {
             triage_action: None,
             triage_rationale: None,
             developer_feedback: None,
+            control_refs: Vec::new(),
             created_at: now,
             updated_at: now,
         }