feat(smartdb): add operation log APIs, point-in-time revert support, and a web-based debug dashboard

rust/crates/rustdb-commands/src/handlers/insert_handler.rs

@@ -2,6 +2,7 @@ use std::collections::HashMap;
 
 use bson::{doc, oid::ObjectId, Bson, Document};
 use rustdb_index::IndexEngine;
+use rustdb_storage::OpType;
 use tracing::{debug, warn};
 
 use crate::context::CommandContext;
@@ -63,7 +64,17 @@ pub async fn handle(
 
         // Attempt storage insert.
         match ctx.storage.insert_one(db, coll, doc.clone()).await {
-            Ok(_id_str) => {
+            Ok(id_str) => {
+                // Record in oplog.
+                ctx.oplog.append(
+                    OpType::Insert,
+                    db,
+                    coll,
+                    &id_str,
+                    Some(doc.clone()),
+                    None,
+                );
+
                 // Update index engine.
                 let mut engine = ctx
                     .indexes