cookie ready

README.md

@@ -30,6 +30,7 @@ The service now loads `.env` automatically from the project root at startup.
 Important variables:
 
 - `PRESTASHOP_PROXY_TARGET`: upstream PrestaShop origin, required
+- `DOMAIN_COOKIE`: optional domain override used when deriving the hashed `PrestaShop-...` cookie name
 - `PRESTASHOP_COOKIE_NAME`: optional explicit cookie-name override. If omitted, the app derives the standard `PrestaShop-...` name from PrestaShop version and normalized host, and still falls back to prefix matching on reads.
 - `PRESTASHOP_COOKIE_KEY`: Defuse/PrestaShop cookie key, required unless bootstrap from install root is used
 - `DB_USER`, `DB_PASS`, `DB_NAME`, `DB_HOST`, `DB_PORT`: preferred split MariaDB settings
@@ -89,6 +90,18 @@ Default listen address is `:8080`.
 - `GET /healthz`
 - `GET /readyz`
 
+## Debug endpoint
+
+- `GET|POST /debug/cookie/decode`
+
+Pass a cookie explicitly with `value` or `cookie`, for example:
+
+```bash
+curl "http://localhost:8080/debug/cookie/decode?value=def50200..."
+```
+
+If no parameter is provided, the endpoint returns the cookie already decoded from the incoming request session.
+
 ## Cookie support
 
 Native cookie logic lives in [internal/prestashop/cookie/codec.go](/home/marek/coding/test/pp/internal/prestashop/cookie/codec.go:1).