Document v1.1.4 session: Fixed price field enhancement

Added session history for v1.1.4 which introduced:
- Fixed price field in Composable Options tab
- JavaScript toggle based on pricing mode selection
- Improved admin UX with progressive disclosure

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

assets/js/admin.js

@@ -36,6 +36,23 @@
             $('#composable_criteria_' + criteriaType).show();
         }).trigger('change');
 
+        /**
+         * Toggle fixed price field based on pricing mode
+         */
+        function toggleFixedPriceField() {
+            const pricingMode = $('#_composable_pricing_mode').val();
+            const $fixedPriceField = $('.composable_fixed_price_field');
+
+            if (pricingMode === 'fixed') {
+                $fixedPriceField.show();
+            } else {
+                $fixedPriceField.hide();
+            }
+        }
+
+        $('#_composable_pricing_mode').on('change', toggleFixedPriceField);
+        toggleFixedPriceField();
+
         /**
          * Initialize enhanced select for categories and tags
          */