libSceDiscMap technical debt

libSceDiscMap: loading disc bitmap metadata and resolving file byte ranges to bitmap blocks are not implemented. Both exports implement the confirmed no-bitmap path: return SCE_DISC_MAP_ERROR_NO_BITMAP_INFO before validating any argument and leave every output unchanged. The supplied module confirms signed 64-bit byte offset/size, a 32-bit IsRequestOnHDD result and three 64-bit outputs for ioKMruft1ek. The latter outputs describe the bitmap selector, first block and block count. Its exported source name remains unavailable.

sceDiscMapGetPackageSize (libSceDiscMap) - its name and NID are in the PS5 3.20 export inventory; the (int64_t, int*, int*) prototype follows shadPS4, is not measured on a console, and every call throws

Additional callable exports - 2 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.

Name	NID
`Unknown`	`5+vOlukvkfg`
`Unknown`	`fJgP+wqifno`