feat: breath template & breath session

database/migrations/2025_08_25_111555_create_breathing_templates_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+public function up()
+{
+    Schema::create('breathing_templates', function (Blueprint $table) {
+        $table->id();
+        $table->foreignId('user_id')->nullable()->constrained()->onDelete('cascade'); // null = default template
+        $table->string('name');
+        $table->integer('inhale');
+        $table->integer('exhale');
+        $table->integer('repeat');
+        $table->timestamps();
+    });
+}
+
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('breathing_templates');
+    }
+};

database/migrations/2025_08_25_111555_create_user_breathing_sessions_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+public function up()
+{
+    Schema::create('user_breathing_sessions', function (Blueprint $table) {
+        $table->id();
+        $table->foreignId('user_id')->constrained()->onDelete('cascade');
+        $table->foreignId('template_id')->constrained('breathing_templates')->onDelete('cascade');
+        $table->timestamps();
+    });
+}
+
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('user_breathing_sessions');
+    }
+};