feat(safety): implement report content API

crates/quark/src/traits/safety/report.rs

@@ -0,0 +1,8 @@
+use crate::models::Report;
+use crate::Result;
+
+#[async_trait]
+pub trait AbstractReport: Sync + Send {
+    /// Insert a new report into the database
+    async fn insert_report(&self, report: &Report) -> Result<()>;
+}