feat(logs): add initial log loading and tab management improvements

- Implement fetchLastLines API to load initial log entries
- Add addInitialLogs function to useSSE hook for prepending logs
- Improve tab handling with better closable behavior and state management
- Add backend support for fetching last N lines from log files

frontend/dist/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="pt-BR">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Web Tail Pro</title>
+    <script type="module" crossorigin src="./assets/index-GvmfrMPc.js"></script>
+    <link rel="stylesheet" crossorigin href="./assets/index-I4JcZQqc.css">
+  </head>
+  <body>
+    <div id="root"></div>␍
+  </body>
+</html>