Add Docker support and installation guide for easy server deployment

Includes a Dockerfile for building the application image and an INSTALLATION.md file detailing the setup process, prerequisites, and helpful commands for managing the application on a private server.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ae4037a0-2a6f-4530-9bac-79b543286bda
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/397bca8c-984f-43ff-841a-10897aeb8140/ae4037a0-2a6f-4530-9bac-79b543286bda/ds3R7vP

client/src/App.tsx

@@ -0,0 +1,31 @@
+import { Switch, Route } from "wouter";
+import { queryClient } from "./lib/queryClient";
+import { QueryClientProvider } from "@tanstack/react-query";
+import { Toaster } from "@/components/ui/toaster";
+import { TooltipProvider } from "@/components/ui/tooltip";
+import NotFound from "@/pages/not-found";
+import Dashboard from "@/pages/dashboard";
+
+function Router() {
+  return (
+    <Switch>
+      <Route path="/" component={Dashboard} />
+      <Route component={NotFound} />
+    </Switch>
+  );
+}
+
+function App() {
+  return (
+    <QueryClientProvider client={queryClient}>
+      <TooltipProvider>
+        <div className="dark">
+          <Toaster />
+          <Router />
+        </div>
+      </TooltipProvider>
+    </QueryClientProvider>
+  );
+}
+
+export default App;