D029 - The first consumer migrated, and the migration was the best review this repository has had

obSCEne deleted 2,801 lines and took these crates as path dependencies. Four defects surfaced and two of them were here, which is worth stating plainly because the value of a shared library is usually argued the other way round.

• A dropped exception. dynlib hardcoded module version 1.1 for every library. obSCEne carried a measured exception - the display library at the previous generation is registered at 0.0 - and a module declaring 1.1 binds to the current generation's set, which has no way to present a frame. The symptom is a module that runs perfectly and draws a black window. Now data/library-versions.tsv with a row, a provenance header, and a test.
• A detection that was right about half the problem. Tags::detect decided the convention from the string table, reasoning that 5 and 0x6100_0035 cannot be confused. The legacy number cannot; 5 is also plain DT_STRTAB, so an ordinary shared object read as a current-convention vendor module. obSCEne keyed on the vendor-range identity tags, which is unambiguous, and that is what this now does. The test that asserted the old behaviour was corrected rather than deleted, as in D013.
• A convention this could not read at all. vendor_segment looks for PT_SCE_DYNLIBDATA, which a current-convention module does not have - its tables are in a PT_LOAD and its tags hold addresses. Elf::tables now handles both and rebases the offsets, so everything in dynamic reads either without knowing which. Verified to reproduce the old path exactly on all eight real modules.

The fourth was obSCEne's: a stale comment arguing for one e_type above code writing the other, which left with the file.

And one API that was shaped around one case

build took a hash suffix and hashed every name. obSCEne has imports that are already identifiers - firmware exports around a million whose names nobody outside the vendor holds. It now takes a [Resolution] carrying a Nid, so hashing a name and decoding an identifier are the same case, and the suffix parameter is gone.

That is a better shape and it was invisible from inside. A format library with no consumers cannot tell which of its parameters are facts and which are one caller's habits.