history(lt): Soviet-era use-policy union measures 1987, 1990; close 2006 triage

@@ -1686,2 +1686,10 @@ rewrite, both read in full on Wikisource against the 1955 original. Unscored
 context: treatment exits widened and death penalties softened, cannabis ranges
 unchanged. One article covers the 1992 hinge. Today's scores are unchanged.
+
+A [Lithuania gap pass](research/history-lithuania-gap-2026-10-26.md) on 26
+October 2026 closes the open 2006 large-cultivation item as reviewed (only
+the maximum rose, alternatives retained) and adds the 1987 Soviet use decree
+and the 1990 constitutional rejection as unscored union measures, both read
+via Human Rights Watch. One article covers the 1987 decree. No scored 1974
+republic step is asserted; the LSSR code text stays unrecovered. Today's
+scores are unchanged.

@@ -0,0 +1,73 @@
+# Lithuania: the 1987 use decree, the 1990 ruling, and the 2006 close-out
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md` and
+`WRITING.md`, the Lithuania profile and its timeline before editing. No book
+was used. This pass closes the one open 2006 score-triage item as reviewed
+and fills the 1980s and 1990s of the 1940–1994 gap with two union-measure
+entries and one article. Cameroon and the other active country passes were
+left untouched.
+
+## Sources actually read
+
+- Human Rights Watch, Rehabilitation Required (2007), background chapter and
+  its footnotes, in full: the 22 June 1987 Presidium decree making drug use
+  a misdemeanour and repeat use a crime; the 1985 expansion of LTP
+  committal; simplified LTP proceedings without appeal; the 25 October 1990
+  Committee for Constitutional Supervision Conclusion No. 8 declaring
+  criminal liability for illicit drug use unconstitutional.
+- Wikipedia, Drug policy of the Soviet Union, in full: the 1974 decree
+  reproduced in Article 224 of all republics' codes (possession without
+  intent, up to three years; production/trafficking ten to fifteen; seducing
+  and theft offences), the 1987 repeat-offence escalation, and the post-Soviet
+  addiction rise. Used only where HRW corroborates the union-level facts;
+  scored RU entries already rest on this page.
+- The 2006 entry's own sources were re-read in place (Seimas Law X-711,
+  original Code Article 265); no new source was needed to close it.
+
+Deliberately not done: no scored 1974 Soviet-possession step for Lithuania.
+The RU/BY/LV/AM copies of that step rest on the union decree plus each
+republic's reconstructed earlier code; Lithuania's LSSR code text was not
+recoverable from here (VU dissertation unreachable, no online LSSR code),
+so no republic-level allocation is asserted. The 1987/1990 entries are
+likewise recorded as union measures with explicit `unscored` reasons.
+
+## What changed
+
+- `lithuania-cultivation-penalty-amendment-2006`: `unscored` reason added —
+  only the large-quantity maximum rose with non-custodial alternatives
+  retained, so no segment moves. Triage now reports 0 open for Lithuania.
+- New `lithuania-soviet-use-decree-1987` (1987-06-22, tightening,
+  unscored): the union use decree as it applied in the LSSR.
+- New `lithuania-soviet-use-ruling-1990` (1990-10-25, easing, unscored):
+  the constitutional conclusion removing the use offence.
+- `lithuania-single-convention-1994`: related link to the 1990 entry.
+  No scores touched; the chain (1940 100→17, 2017 17→11, 2019 11→12) and
+  today's profile scores are unchanged, so the profile file was not edited.
+
+## Article
+
+- `articles/lithuania-soviet-use-decree-1987.md` (366 words, three
+  headings): the 1987 decree, the 1974 possession backdrop, LTP compulsion,
+  the 1990 rejection, and the line to 1994/2003/2017. Links to the 1994
+  convention entry and `/country/lt/`.
+
+## Still open
+
+- The 1940 imposition entry (still Wikipedia-only and openly uncertain),
+  the LSSR code's own cannabis provisions, and any republic-level 1974
+  allocation: all require Lithuanian or Russian archival sources not
+  reachable in this pass.
+
+## Validation
+
+- Parsed-history comparison of the working tree against HEAD: exactly two
+  entries added and two entries revised (2006 `unscored`, 1994 `related`);
+  no other country's entries changed, none removed.
+- `node scripts/data-status.cjs chain lt`: no flagged steps.
+  `npm run scores:triage -- lt`: 3 scored, 0 open.
+- `npm run history:test`: 39 passed. `npm run answers:test`: 27 passed.
+  `npm run scores:triage -- lt`: 3 scored, 0 open.
+- Production build passed (4,225 pages). Both new history pages render.
+  Article: 362 words, three headings.
+- Concurrent agents' work in shared files is untouched; this commit stages
+  only the Lithuania hunks and files.