LLM restock: use Restock.parse_currency() like the other price extractors

Same parser c8afea1b (#4494) moved the structured-data extractors to, so
there's one place price text becomes a number. parse_currency() now lists
every caller, and the call sites point back to it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

changedetectionio/processors/restock_diff/plugins/llm_restock.py

@@ -335,9 +335,10 @@ def get_itemprop_availability_override(content, fetcher_name, fetcher_instance,
             try:
                 if isinstance(price, str):
                     # The model sometimes returns the price as page text ("1.299,95 €"), stripping
-                    # everything but digits and dots would turn that into 1.29995
-                    from price_parser import Price
-                    price = Price.fromstring(price).amount_float
+                    # everything but digits and dots would turn that into 1.29995. Same parser as the
+                    # structured-data extractors, see Restock.parse_currency() for every caller.
+                    from changedetectionio.processors.restock_diff import Restock
+                    price = Restock().parse_currency(price)
                 else:
                     price = float(price)
             except (ValueError, TypeError):