history: close Bhutan 2017 and Ethiopia 2019 triage as reviewed unscored

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+# Triage: Bhutan 2017 and Ethiopia 2019 closed as reviewed
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md` (triage and
+timeline rules), both entries with their profiles and timelines before
+editing. No web search was needed: both decisions rest on the entries'
+already-checked sources and the current profiles. Two open triage items
+closed with `unscored` reasons; no scores, profiles or timelines changed.
+
+## What changed
+
+- `bhutan-narcotics-amendment-2017` (2017-12-05, easing): `unscored` —
+  the amendment's treatment rule is already the profile's possession text;
+  no band change against the 1925-based floor, so the estimate retains
+  the first drop.
+- `ethiopia-cannabis-investment-refused-2019` (2019-03, medical):
+  `unscored` — the refusal confirms the existing no-medical-access status
+  already in the profile; no access change.
+
+Triage now reports BT and ET at 0 open each.
+
+## Validation and tree note
+
+- Chains `bt` and `et`: unchanged, 0 flagged steps.
+- `npm run history:test`: 40 pass, 0 fail. `npm run answers:test`: 40
+  pass, 0 fail. Production build: 4,350 pages, complete.
+- Commit stages only the two `unscored` hunks in changes.yaml plus this
+  note, via patch filtering. Foreign work in the shared tree is excluded
+  and preserved.