Manage calls and the inbox through the API

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/Http/Requests/Api/V1/ApplicationRequest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Requests\Api\V1;
+
+use App\Enums\ApplicationStatus;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+/**
+ * What the inbox lets anyone change about a submission: nothing the sender
+ * wrote, only how it is being handled.
+ */
+class ApplicationRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function rules(): array
+    {
+        return [
+            'status' => ['sometimes', Rule::enum(ApplicationStatus::class)],
+            'notes' => ['sometimes', 'nullable', 'string', 'max:10000'],
+        ];
+    }
+}

app/Http/Requests/Api/V1/CallRequest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Requests\Api\V1;
+
+use App\Enums\CallStatus;
+use App\Models\Call;
+use App\Rules\Translatable;
+use App\Rules\UniqueTranslatedSlug;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+/**
+ * The panel's call form, as rules. `technology_ids` is replaced whole when
+ * sent.
+ */
+class CallRequest extends FormRequest
+{
+    public const SENIORITIES = ['any', 'junior', 'mid', 'senior'];
+
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function rules(): array
+    {
+        $call = $this->route('call');
+        $creating = ! $call instanceof Call;
+        $sometimes = $creating ? 'required' : 'sometimes';
+
+        return [
+            'title' => [$sometimes, new Translatable(requireDefaultLocale: $creating, max: 255)],
+            'slug' => [
+                $sometimes,
+                new Translatable(requireDefaultLocale: $creating, max: 255),
+                new UniqueTranslatedSlug(Call::class, $call?->id),
+            ],
+            'description' => ['sometimes', 'nullable', new Translatable],
+            'what_you_get' => ['sometimes', 'nullable', new Translatable],
+
+            'status' => ['sometimes', Rule::enum(CallStatus::class)],
+            'hours_per_week' => ['sometimes', 'nullable', 'integer', 'min:1', 'max:40'],
+            'duration_weeks' => ['sometimes', 'nullable', 'integer', 'min:1'],
+            'seniority' => ['sometimes', 'nullable', Rule::in(self::SENIORITIES)],
+            'opens_at' => ['sometimes', 'nullable', 'date'],
+            'closes_at' => ['sometimes', 'nullable', 'date', 'after_or_equal:opens_at'],
+
+            'project_id' => ['sometimes', 'nullable', 'integer', Rule::exists('projects', 'id')->whereNull('deleted_at')],
+            'technology_ids' => ['sometimes', 'array'],
+            'technology_ids.*' => ['integer', 'distinct', Rule::exists('technologies', 'id')],
+        ];
+    }
+}