wip: better types, and typecheck tests, add linting

.changeset/dry-toys-count.md

@@ -0,0 +1,5 @@
+---
+'@cloudflare/workers-oauth-provider': patch
+---
+
+fix types, add linting

__tests__/mocks/cloudflare-workers.ts

@@ -2,6 +2,7 @@
  * Mock for cloudflare:workers module
  * Provides a minimal implementation of WorkerEntrypoint for testing
  */
+/** biome-ignore-all lint/suspicious/noExplicitAny: it's fine */
 
 export class WorkerEntrypoint {
   ctx: any;
@@ -12,7 +13,7 @@ export class WorkerEntrypoint {
     this.env = env;
   }
 
-  fetch(request: Request): Response | Promise<Response> {
+  fetch(_request: Request): Response | Promise<Response> {
     throw new Error('Method not implemented. This should be overridden by subclasses.');
   }
 }

biome.json

@@ -0,0 +1,61 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.1.4/schema.json",
+  "assist": {
+    "actions": {
+      "source": {
+        "useSortedKeys": "off",
+        "organizeImports": "off"
+      }
+    },
+    "enabled": true
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "includes": [
+      "src/**",
+      "__tests__/**",
+      ".github/**",
+      "!node_modules",
+      "!dist",
+      "!.wrangler",
+      "!wrangler.jsonc",
+      "!./tsconfig.json",
+      "!package.json",
+      "!package-lock.json"
+    ]
+  },
+  "formatter": {
+    "enabled": false,
+    "indentStyle": "tab"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "a11y": {
+        "useKeyWithClickEvents": "off"
+      },
+      "complexity": {
+        "noBannedTypes": "off"
+      },
+      "recommended": true,
+      "style": {
+        "noInferrableTypes": "error",
+        "noNonNullAssertion": "off",
+        "noParameterAssign": "error",
+        "noUnusedTemplateLiteral": "error",
+        "noUselessElse": "off",
+        "useAsConstAssertion": "error",
+        "useDefaultParameterLast": "error",
+        "useEnumInitializers": "error",
+        "useNumberNamespace": "error",
+        "useSelfClosingElements": "error",
+        "useSingleVarDeclarator": "error"
+      }
+    }
+  },
+  "vcs": {
+    "clientKind": "git",
+    "enabled": false,
+    "useIgnoreFile": false
+  }
+}

package.json

@@ -17,14 +17,14 @@
   "scripts": {
     "build": "tsup",
     "build:watch": "tsup --watch",
-    "check": "npm run typecheck && npm run test",
-    "typecheck": "tsc",
+    "check": "biome check && tsc && npm run test",
     "test": "vitest run",
     "test:watch": "vitest",
     "prepublishOnly": "npm run build",
     "prettier": "prettier -w ."
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.1.4",
     "@changesets/changelog-github": "^0.5.1",
     "@changesets/cli": "^2.29.5",
     "@cloudflare/workers-types": "^4.20250807.0",