Previously the test asserted ctyun-live should FAIL, but after
CTYun subscription extension, ctyun-live now passes. Updated
the assertion to match current runtime truth.
- coreshub_pricing_lib.go: CoreHub pricing data extraction and parsing
- import_coreshub_pricing.go: importer with dry_run support
- import_coreshub_pricing_test.go: unit tests for importer
- coreshub_pricing_sample.txt: test fixture