Answer the inbox from the panel, with templates

A reply starts from a template filled in the language the person wrote in,
is sent by the application when it has a mailer that delivers or handed to
the replier's mail program otherwise, and is recorded on the submission.
The same is available through the API.

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

database/migrations/2026_10_01_120000_create_reply_tables.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * Answering the inbox from the panel: templates for the answers that are
+ * nearly always the same, and a record of each answer sent.
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('reply_templates', function (Blueprint $table): void {
+            $table->id();
+            $table->string('name');
+
+            // `contribute` or `request`, or null for either.
+            $table->string('kind', 20)->nullable();
+
+            $table->jsonb('subject');
+            $table->jsonb('body');
+            $table->unsignedInteger('position')->default(0);
+            $table->timestamps();
+        });
+
+        Schema::create('application_replies', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('application_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('user_id')->nullable()->constrained()->nullOnDelete();
+            $table->string('user_name')->nullable();
+            $table->string('subject');
+            $table->text('body');
+
+            // `mail` when this application sent it, `mailto` when it was
+            // handed to the person's own mail program to send.
+            $table->string('channel', 10);
+            $table->timestamp('created_at')->useCurrent();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('application_replies');
+        Schema::dropIfExists('reply_templates');
+    }
+};