feat(clinic-services): two-page section→services flow matching Figma

Restructure clinic-services from two-pane to Figma two-view flow:
sections card grid (name, edit, activate/deactivate, 'بخش جدید' modal) →
click a section → its services card grid with breadcrumb back. Service
card matches Figma: overflow menu, active badge, base price, average
time badge, staff chip. Add duration_minutes to ServiceItem (migration
+ create/update + form field). Update clinic-services.md.

(Version20260713050014 syncs pre-existing entity/schema drift.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

migrations/Version20260713050114.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260713050114 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE service_items ADD duration_minutes INT DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE service_items DROP duration_minutes');
+    }
+}