06 — DOT / No-hardcode / Five-layer

No-hardcode — PASS

Every literal in the new SQL/Python is config key, catalog identifier or bus vocabulary:

• runtime/180 bakes no document code, no IU uuid — buildable set discovered by live query (test_180_has_no_hardcoded_doc_or_id).
• Migration 012 bakes no uuid, secret, IP, or doc code. The gateway marker key is discovered from dot_config 'iu_create.gateway.marker_key'; unit_kind/section_type come from the op payload. Operation names, relation types, the lifecycle token deprecated, the structure_* event types are domain/bus vocabulary — classified, allowed.
• runtime/190 event types/routes are registry rows; routes carry no endpoint.
• pg_structure_store.py knows only the four fn_iu_structure_op_* names — no DSN/host/secret; imports no driver; takes the connection from the caller.
• Scan of the new files: 0 secret / DSN / api-key / private-key / IP matches.

DOT — PASS, 53/53

runtime/180 adds no new database object — DOT stayed 43/43 after the tree build. Migration 012 is CREATE OR REPLACE of three existing functions — no new object. runtime/190 adds 5 event types + 5 routes; runtime/110's SSOT inventory _iu_core_expect and the D9 verdict were bumped in the same commit (event_type 2→7, route 3→8).

runtime/110 live scan after all changes — D9 conformance:

class	expected	found	ok
table	9	9	t
view	6	6	t
function	18	18	t
trigger	2	2	t
config	3	3	t
event_type	7	7	t
route	8	8	t

53/53 PASS, D8 drift guard 0 rows.

Five-layer sync

Layer	Impact
PG	Real change: 26 durable reparent_piece ops (45 nested IUs); 3 functions replaced (012); 5 event types + 5 routes (runtime/190). Additive/idempotent; gate-closed for non-reparent code.
Directus	Data-only change to the existing information_unit collection (45 rows carry parent_or_container_ref). No collection/field DDL.
Nuxt	Render-only — a deeper IU tree; no schema/component contract change.
AgentData / KB	This macro's 7 reports.
Qdrant / vector	No impact — structure ops metadata-only.

Reversibility

runtime/180 → runtime/rollback/180; migration 012 → rollback/012; runtime/190 → runtime/rollback/190; per-op fn_iu_structure_op_rollback; gates closable.