libSceNKWeb technical debt

sceNKWebInitialize and sceNKWebTerminate remain throwing stubs. Both native exports take no input arguments and return a 32-bit status; decompiler SIMD parameters are unused register propagation through initialization and cleanup helpers.

Additional callable exports - 3 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 or supplemental catalog.