merge: integrate dev branch (v1.56.0), resolve all conflicts

Resolves 15 conflicted files from dev merge:
- Version bumps to v1.56.0, pnpm 10.32.0, turbo 2.8.15
- New integrations: tracearr (from dev)
- New widgets: tracearr (from dev)
- Updated dependencies: mysql2, typescript-eslint, isomorphic-dompurify
- Keeps our custom server changes: esbuild, fastify, cron-job-api deps
- Keeps our docker:test scripts and APPROACHES.md

Co-authored-by: ajnart <49837342+ajnart@users.noreply.github.com>

packages/request-handler/src/tracearr.ts

@@ -0,0 +1,19 @@
+import dayjs from "dayjs";
+
+import { createIntegrationAsync } from "@homarr/integrations";
+import type { TracearrDashboardData } from "@homarr/integrations/types";
+
+import { createCachedIntegrationRequestHandler } from "./lib/cached-integration-request-handler";
+
+export const tracearrRequestHandler = createCachedIntegrationRequestHandler<
+  TracearrDashboardData,
+  "tracearr",
+  Record<string, never>
+>({
+  async requestAsync(integration, _input) {
+    const integrationInstance = await createIntegrationAsync(integration);
+    return await integrationInstance.getDashboardDataAsync();
+  },
+  cacheDuration: dayjs.duration(5, "seconds"),
+  queryKey: "tracearrDashboard",
+});