chore: migration to update vision_analyze prompt in DB

Captures the current working vision prompt (MODEL_NAME/MODEL_NUMBER
split) as a versioned migration so fresh installs get the correct prompt
without manual intervention.

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

migrations/Version20260520040000.php

@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260520040000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Update vision_analyze prompt: split MODEL into MODEL_NAME/MODEL_NUMBER';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $body = <<<'PROMPT'
+Look at this nameplate/label photo of IT hardware.
+Extract the manufacturer, any model identifier (name or number), and serial number visible on the label.
+If the label shows both a product name (e.g. "ThinkPad T490s") and a separate part/product code (e.g. "20NXS0BA00"), put the product name in MODEL_NAME and the code in MODEL_NUMBER.
+If only one model field is visible, put it in MODEL_NAME and leave MODEL_NUMBER completely empty.
+MODEL_NUMBER must never contain the serial number.
+Do not guess or add information not visible on the label.
+Respond in exactly this format:
+MANUFACTURER:
+MODEL_NAME:
+MODEL_NUMBER:
+SERIAL:
+Use empty string (nothing after the colon) when a field is not visible.
+PROMPT;
+
+        $this->addSql('UPDATE app.prompt_templates SET body = :body, updated_at = NOW() WHERE key = :key', [
+            'body' => $body,
+            'key' => 'vision_analyze',
+        ]);
+    }
+
+    public function down(Schema $schema): void
+    {
+        $body = <<<'PROMPT'
+Look at this nameplate/label photo of IT hardware.
+Extract the manufacturer (brand), model number/designation, and serial number visible on the label.
+Do not guess or add information not on the label.
+Respond in exactly this format (use empty string if not visible):
+MANUFACTURER: <brand name, e.g. Dell, HP, Lenovo, Medion>
+MODEL: <model number or designation>
+SERIAL: <serial number>
+PROMPT;
+
+        $this->addSql('UPDATE app.prompt_templates SET body = :body, updated_at = NOW() WHERE key = :key', [
+            'body' => $body,
+            'key' => 'vision_analyze',
+        ]);
+    }
+}