nx_wiki_structure_regen_gate.nx

nx_wiki_structure_regen_gate.nx -- TEETH for IMS A4b (the re-publish-on-pulse engine). HERMETIC + apply_flag=0 throughout: the gate exercises the regen DECISION CORE (reg_decide + reg_guard_and_apply) directly against in-memory NxWikiDocStore fixtures + a synthetic RegRegistry, with do_push_flag/apply_flag = 0 EVERYWHERE -- it never touches web_assets, the NAS, the vault, or SSH. Each clean assertion is paired with a PLANTED-fault assertion that forces a specific verdict at a known page: T1 CLEAN registry (every non-root page cross-linked, no dead links) -> EVERY emitter page CLEAN + would_publish=YES, 0 orphans, and the manual-only page is RC_MANUAL_ONLY (counted, not published). T2 PLANTED ORPHAN via a DROPPED LINK: page "hub" used to link "leaf" (baseline) but its re-emitted body DROPS that link, leaving "leaf" with 0 inbound -> regen marks the OFFENDING page ("hub") RC_REFUSE_ORPHAN + would_publish=NO. (proves it REFUSES to create an orphan, and attributes it to the change that caused it.) [TEETH] T3 PLANTED GUARD-FAIL: a page whose would-be body has NO freshness stamp -> pg_decide returns PG_REJECT_NO_FRESHNESS -> that page is skipped (would_publish=NO) with the EXACT reason. [TEETH] T4 PUSH SAFETY: across the WHOLE run, apply_flag=0 -> NO page has pushed==1 (push_invoked never set). [TEETH] GREEN iff T1..T4 with EXACT verdicts/identities. exit 0 GREEN / 1 RED. Logs to knowledge/status/wiki_structure_regen_gate.log. Sovereign: nx_wiki_structure_regen (which composes A1 monitor + A2 guard + A4a versioned-publish + index_builder) + nx_syscalls. license_tier: ORIGINAL