nx_embfeat_gate.nx

nx_embfeat_gate.nx -- GATE for the embedding-feature library (nx_embfeat_lib), driven IN-PROCESS on a PLANTED pair of models under /tmp/nx_embfeat_gate: a four-word PPMI vocabulary written through nx_wordclust's fixture writer (the canonical NXPPMI1 shape) and a four-row NXEMB1 table written by the library's own fixture writer in the same sorted-hash order. Proves: the pair loads, header fields read back, the scale is derived from the table (RMS then a half step), a known word resolves to its own planted row and an unknown word reads -1, the bucket arithmetic (zero, one step, minus one step, a clamp on both sides), the two-byte spelling, determinism across two loads, and the fail-closed controls (a missing table, a table with a wrong magic). Every fixture asserts its own condition first. No network. license_tier: ORIGINAL No hw writes (Rule 26).