fix: include PricingOptionBase in _generated.py exports

The consolidate_exports.py script now discovers and exports
PricingOptionBase from pricing_option_base.py, ensuring the
committed _generated.py matches what CI regenerates.

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

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

Author: bokelley

src/adcp/types/_generated.py

@@ -10,7 +10,7 @@
 DO NOT EDIT MANUALLY.
 
 Generated from: https://github.com/adcontextprotocol/adcp/tree/main/schemas
-Generation date: 2025-12-11 01:20:15 UTC
+Generation date: 2025-12-11 02:12:24 UTC
 """
 
 # ruff: noqa: E501, I001
@@ -347,6 +347,7 @@
     ViewThreshold1,
 )
 from adcp.types.generated_poc.pricing_options.flat_rate_option import FlatRatePricingOption
+from adcp.types.generated_poc.pricing_options.pricing_option_base import PricingOptionBase
 from adcp.types.generated_poc.pricing_options.vcpm_auction_option import VcpmAuctionPricingOption
 from adcp.types.generated_poc.pricing_options.vcpm_fixed_option import VcpmFixedRatePricingOption
 from adcp.types.generated_poc.protocols.adcp_extension import (
@@ -552,6 +553,7 @@
     "PriceGuidance",
     "Pricing",
     "PricingModel",
+    "PricingOptionBase",
     "PrimaryCountry",
     "Product",
     "ProductCard",