docs(adr): promote ADR-0037 + ADR-0038 to Accepted (Phase 1 shipped)

docs/adr/0037-execution-time-mode-side-channel.md

@@ -2,9 +2,16 @@
 
 ## Status
 
-Proposed (design agreed with the user 2026-05-27; pending `/runda` +
-implementation). Redeems the follow-up **deferred by ADR-0033
-Amendment 3**, which named this very ADR and its motivating consumer.
+Accepted. Design agreed with the user (2026-05-27); the channel is
+**implemented and validated end-to-end** by its motivating consumer
+(ADR-0038's DSL → SQL teaching echo). The three-way `EffectiveMode`
+{ `Simple`, `AdvancedPersistent`, `AdvancedOneShot` } resolves at submit
+time in `App::submit` and threads through `Action::ExecuteDsl` →
+`runtime::spawn_dsl_dispatch`, which gates `echo::echo_for` on it
+(handoff-46 commit `04c8e42` shipped the channel + first echo slice;
+handoff-47 commit `90479cb` proved it carries the full Bucket A
+catalogue). Redeems the follow-up **deferred by ADR-0033 Amendment 3**,
+which named this very ADR and its motivating consumer.
 
 ## Context