Add public API v1 with API key auth, rate limiting, and docs page

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Http/Controllers/ApiKeyController.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\ApiKey;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Gate;
+
+class ApiKeyController extends Controller
+{
+    public function index()
+    {
+        $keys = auth()->user()->apiKeys()->latest()->get();
+        return view('settings.api-keys', compact('keys'));
+    }
+
+    public function store(Request $request)
+    {
+        $request->validate(['name' => 'required|string|max:50']);
+
+        $apiKey = ApiKey::generate(auth()->user(), $request->name);
+
+        return redirect()->route('settings.api-keys')->with('new_api_key', $apiKey->key);
+    }
+
+    public function destroy(ApiKey $apiKey)
+    {
+        Gate::authorize('delete', $apiKey);
+        $apiKey->delete();
+        return redirect()->route('settings.api-keys')->with('success', 'API key deleted.');
+    }
+}