Switch from eslint to oxlint (#34166)

* Fix type imports

* Fix jsdoc

* Fixup types

* Fix stray awaits on non-thenables

* Fixup imports

* Fix splats

* Fix this-context on callbacks

* Memoise react contexts

* Prefer find/flatMap

* Make oxlint happier about our React keys

* Avoid unsafe default function params

* Fixup jsdoc

* Fixup contexts

* Switch from eslint to oxlint

* Some oxlint-related tweaks

* Iterate

* Partial revert to defer some changes and shrink diff

* Iterate

* Add eslint-plugin-element-call and enable the copyright rule

* Set strictStorePkgContentCheck

* Iterate

* Make sonar happy

* Fix new lints

scripts/analyse_unused_exports.ts

@@ -1,4 +1,10 @@
 #!/usr/bin/env node
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
 
 import * as fs from "node:fs";
 import { exec } from "node:child_process";

scripts/gen-workflow-mermaid.ts

@@ -1,3 +1,10 @@
+/*
+Copyright 2026 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
 import fs from "node:fs/promises";
 import path from "node:path";
 import YAML from "yaml";
@@ -192,19 +199,19 @@ interface WorkflowYaml {
         workflow_run?: {
             workflows: string[];
         }; // Magic
-        workflow_call?: {}; // Reusable
-        workflow_dispatch?: {}; // Manual
-        pull_request?: {};
-        merge_group?: {};
+        workflow_call?: unknown; // Reusable
+        workflow_dispatch?: unknown; // Manual
+        pull_request?: unknown;
+        merge_group?: unknown;
         push?: {
             tags?: string[];
             branches?: string[];
         };
         schedule?: { cron: string }[];
-        release?: {};
+        release?: unknown;
         //
-        label?: {};
-        issues?: {};
+        label?: unknown;
+        issues?: unknown;
     };
     jobs: {
         [job: string]: {