feat: add HasFactory and factories for ApiLog, BrentPrice, PricePrediction

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

database/factories/ApiLogFactory.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\ApiLog;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/** @extends Factory<ApiLog> */
+class ApiLogFactory extends Factory
+{
+    public function definition(): array
+    {
+        return [
+            'service' => fake()->randomElement(['fuel_finder', 'fred', 'anthropic', 'postcodes_io']),
+            'method' => fake()->randomElement(['GET', 'POST']),
+            'url' => fake()->url(),
+            'status_code' => fake()->randomElement([200, 200, 200, 401, 429, 500]),
+            'duration_ms' => fake()->numberBetween(50, 2000),
+            'error' => null,
+            'created_at' => fake()->dateTimeBetween('-7 days'),
+        ];
+    }
+
+    public function failed(): static
+    {
+        return $this->state([
+            'status_code' => fake()->randomElement([400, 401, 403, 429, 500, 503]),
+            'error' => fake()->sentence(),
+        ]);
+    }
+}

database/factories/BrentPriceFactory.php

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+<?php
+
+namespace Database\Factories;
+
+use App\Models\BrentPrice;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/** @extends Factory<BrentPrice> */
+class BrentPriceFactory extends Factory
+{
+    /** @var array<int, string> */
+    private static array $usedDates = [];
+
+    public function definition(): array
+    {
+        do {
+            $date = fake()->dateTimeBetween('-60 days')->format('Y-m-d');
+        } while (in_array($date, self::$usedDates, true));
+
+        self::$usedDates[] = $date;
+
+        return [
+            'date' => $date,
+            'price_usd' => fake()->randomFloat(2, 65, 95),
+        ];
+    }
+}

database/factories/PricePredictionFactory.php

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+<?php
+
+namespace Database\Factories;
+
+use App\Enums\PredictionSource;
+use App\Enums\TrendDirection;
+use App\Models\PricePrediction;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/** @extends Factory<PricePrediction> */
+class PricePredictionFactory extends Factory
+{
+    public function definition(): array
+    {
+        return [
+            'predicted_for' => fake()->dateTimeBetween('-30 days')->format('Y-m-d'),
+            'source' => fake()->randomElement(PredictionSource::cases()),
+            'direction' => fake()->randomElement(TrendDirection::cases()),
+            'confidence' => fake()->numberBetween(40, 85),
+            'reasoning' => fake()->sentence(12),
+            'generated_at' => now(),
+        ];
+    }
+
+    public function llm(): static
+    {
+        return $this->state(['source' => PredictionSource::Llm]);
+    }
+
+    public function ewma(): static
+    {
+        return $this->state(['source' => PredictionSource::Ewma]);
+    }
+}