history: close Panama 2022 medical regulations triage as reviewed unscored

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+# Triage: Panama 2022 medical regulations closed as reviewed
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md` (triage and
+timeline rules), the entry with the profile and timeline before editing. No
+web search was needed: the decision rests on the entry's already-checked
+sources and the current profile. One open triage item closed with an
+`unscored` reason; no scores, profiles or timelines changed. The 1923/1926
+Canal Zone entries were reworked by the concurrent writer today and were
+not touched.
+
+## What changed
+
+- `panama-medical-regulations-2022` (2022-09, medical): `unscored` —
+  implements the 2021 framework without opening user access (access stays
+  0); no segment moves.
+
+Triage now reports PA at 0 open (1923 100→11, today 11).
+
+## Validation and tree note
+
+- Chain `pa`: unchanged, 0 flagged steps.
+- `npm run history:test`: 40 pass, 0 fail. `npm run answers:test`: 40
+  pass, 0 fail. Production build: 4,362 pages, complete.
+- Commit stages only the `unscored` hunk plus this note, via patch
+  filtering. Foreign work in the shared tree is excluded and preserved.