new struct md files

patch_history/RETRIEX_CONFIG_FIX_README.md

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+# RetrieX config hardening overlay
+
+Scope:
+- Multi-tenant and configuration hardening only.
+- No retrieval logic rewrite.
+- No prompt logic rewrite.
+- No security/secrets cleanup in this round.
+
+Install:
+1. Backup the current project.
+2. Extract this ZIP over the project root.
+3. Clear Symfony cache.
+4. Run:
+   bin/console mto:agent:config:dump-effective --summary
+   bin/console mto:agent:config:validate
+5. Run the existing 1.4.2 regression tests before deployment.
+
+New config files:
+- config/retriex/runtime.yaml
+- config/retriex/index.yaml
+- config/retriex/vector.yaml
+- config/retriex/commerce.yaml
+- config/retriex/model.yaml
+- config/retriex/prompt.yaml
+- config/retriex/agent.yaml
+- config/retriex/retrieval.yaml
+
+New commands:
+- mto:agent:config:dump-effective
+- mto:agent:config:validate
+
+Notes:
+- Existing mto.* parameters remain for compatibility.
+- services.yaml imports config/retriex/*.yaml explicitly in stable order.
+- Retrieval constants are exposed as inventory and validation baseline, but are not dynamically changed in this round.