Read-only WIT commerce hooks

manifest.json defines all four native commerce hooks: price, discount, shipping and validation. Its commerceHooks.source uses the checked-in Component Model example and typed WIT contract. It reads bounded cart/product/app record snapshots, returns typed decisions and has no network, SQL, filesystem, WASI or arbitrary core mutation capability. The actual native money/tax/FX owner calculates returned amounts. This fixture is deliberately synthetic, not an economic recommendation or a replacement payment provider.

Import the manifest through package review in a private test shop, then add the fixture mug to a cart. Inspect appHookOutcomes, quote changes and a reviewed checkout/order. Compilation and probing happen before checkout transactions; fuel, memory, table, stack, epoch and process admission limits bound execution.

python3 scripts/verify_integration.py --only app_components checks all four quote outcomes, reviewed checkout and idempotent order persistence, foreign shop isolation, malformed ABI and malicious host-call loops. See the canonical hook contract.

Version 1.1.0 adds five frozen capability.examples cases to the same package. Installation and App Studio save execute the existing WIT component against those inputs before persisting a version. A wrong expectation or trap blocks admission. The Business goal tab shows localized intent, assumptions and expected adjustments. The native checkout still owns monetary effects, taxes, inventory and payment; these synthetic cases are not a replay of historical customer orders.