# RetrieX Patch 21 - Language Cleanup Profiles groundwork

## Goal

Prepare RetrieX 1.5.3 for simpler, centralized language cleanup without changing runtime behavior yet.

## Changes

- Extends `config/retriex/language.yaml` additively.
- Keeps legacy `retriex.stopwords.config.words` unchanged.
- Adds central groups for protected terms, German core stopwords, conversation noise, user instruction phrases, presentation/meta terms, and cleanup profiles.
- Introduces initial profiles: `commerce_query`, `rag_evidence`, `shop_context_fallback`.

## Non-goals

- No external stopword library.
- No Commerce/Agent runtime wiring yet.
- No removal of existing lists in `commerce.yaml`, `agent.yaml`, or `retrieval.yaml`.
- No domain-specific special cases.

## Install

Copy the files from this patch over the current RetrieX root.

```bash
unzip retriex-p21-language-cleanup-profiles-patch-only.zip -d /path/to/retriex
cd /path/to/retriex
bin/console mto:agent:config:validate
bin/console mto:agent:regression:test
bin/console mto:agent:config:audit-source --details
bin/console mto:agent:config:audit-patterns --details
```

## Expected result

All checks should remain green. This patch should not change answers yet.