# RetrieX Patch 4 Hotfix: SearchRepair pattern-template validation

This hotfix fixes an overly strict placeholder validation in `SearchRepairConfig`.

## Problem

Patch 4 moved SearchRepair patterns to YAML. The new validator rejected every rendered template that still contained a `{` character. This also rejected valid regex quantifiers such as `\d{1,5}`.

Symfony error example:

```text
RetrieX search repair pattern template "patterns.accessory_candidate_template" contains unresolved placeholders.
```

## Fix

The validator now only treats named placeholders like `{terms}` or `{model}` as unresolved. Regex quantifiers such as `{1,5}` remain valid.

No retrieval, prompt, shop, scoring, or SearchRepair behavior is changed.

## After applying

```bash
php bin/console cache:clear
php bin/console mto:agent:config:validate
php bin/console mto:agent:config:audit-source --details
php bin/console mto:agent:regression:test
```