docs(libSceNKWebKit): record export identity inventory

docs/dev/debt/libSceNKWebKit.md

@@ -6,6 +6,8 @@
 
 ### Additional callable exports
 
+- The [revision-pinned identity inventory](https://gist.github.com/kyon-eth/d44995f181e1818977bd38f0e6fc0f34/7e7167e8adb1d73b5805c31f7cd2cce4f3bc80c7) records the module, library, symbol type and NIDs for the declarations in [Export.cpp](../../../core/libs/prx/libSceNKWebKit/Export.cpp); it is a metadata summary rather than independent verification.
+
 - [Additional callable exports](../../../core/libs/prx/libSceNKWebKit/Export.cpp) - 8703 entries observed in the 3.20 export inventory and present in the later 13.60-labelled inventory are import-resolution declarations only. The later inventory label does not authenticate a retail firmware version. Parameter lists, return types and behavior are unverified; parameterless `int` declarations are placeholders, not verified ABI contracts. Every entry throws through `NotImplemented_nid_no_patch`. Unidentified names use literal NID aliases. No runtime functionality is implemented. Data exports require separate layout and ownership analysis. Identified candidate names match their NIDs in the [public symbol database](https://github.com/zecoxao/sce_symbols/blob/2883963a0a514ba6e77407a08ef4730a65e88254/aerolib.csv) or [supplemental catalog](https://github.com/claimore22/ps5rs/blob/2304be5131221bae0dac24b9767cabffda33f747/data/nids.csv).
 
 | Name | NID |