Fill San Marino 1981-1997 history gap

@@ -1666,2 +1666,9 @@ sentencing bands — all read in full. One article covers the 1976 order; the
 1922 Act's article already existed and was left untouched. Today's scores are
 unchanged.
+
+A [San Marino gap pass](research/history-san-marino-gap-2026-10-26.md) on 26
+October 2026 adds the 1981 decree's cannabis schedule, the March 1988 law
+that punishes simple possession like supply (annulling the 1956 law), and the
+November 1997 repeal-and-reenactment — all read in full. Unscored context:
+degrees-based penalties with no mapped segment change. One article covers the
+1988 hinge. Today's scores are unchanged.

@@ -0,0 +1,78 @@
+# San Marino: the 1981 schedule, the 1988 tightening and the 1997 rewrite
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md` and
+`WRITING.md`, the San Marino profile and its seven history entries before
+editing. No book was used. This pass fills the 1956–2000 gap with three
+dated entries and one article. Cameroon and the other active country passes
+were left untouched.
+
+## Sources actually read
+
+- United Nations E/NL.1988/42, San Marino's Law No. 32 of 7 March 1988, in
+  full (4-page English reproduction): articles 1–13 — second-degree
+  imprisonment for production, introduction, possession for sale and supply;
+  simple possession punished the same with the 1956 law's lighter treatment
+  and all its other provisions annulled; personal-use mitigation, treatment
+  probation, aggravating factors, expert opinions, the article 11 drug
+  tables (cannabis group: marijuana, hashish, THC, hashish oil,
+  sinsemilla), transitional and retroactivity rules, and the 15-day
+  commencement clause. Signed 10 March 1988.
+- San Marino Law No. 139 of 26 November 1997, in full from the Consiglio
+  Grande e Generale site (Italian PDF): articles 1–14 — repeal of the 1956
+  and 1988 laws, the same supply and simple-possession structure, the
+  Social Security Institute prescription/recognition exception, probation
+  and procedure, the cannabis list, and the 15-day commencement clause.
+  Passed 26 November, signed 27 November 1997.
+- San Marino Law No. 113 of 18 August 2021 (Italian PDF, read for the
+  preamble only): article 21's reference to Law 139/1997, which is how the
+  1997 law was found; 2021/2023 entries otherwise untouched.
+
+Deliberately not used: search snippets about Italian DPR 309/1990 applying
+in San Marino (no evidence found that Italian drug law applies there; the
+republic legislates its own), and secondary cannabis-site summaries of
+Sammarinese penalties (weaker than the two statutes read).
+
+## What changed
+
+- New `san-marino-drug-schedule-1981` (1981-02-10, `other`, unscored):
+  Captains Regent Decree No. 13's drug tables, reproduced in the 1988 law,
+  as the instrument that names the cannabis group.
+- New `san-marino-narcotics-additions-1988` (1988-03, tightening,
+  unscored): simple possession raised to second-degree imprisonment, the
+  1956 law annulled. Unscored because penalties are expressed in
+  Sammarinese degrees with no mapped user-level change against the 1956
+  treatment — no segment moves.
+- New `san-marino-drugs-law-1997` (1997-11, `other`, unscored): repeal and
+  re-enactment with procedure and alcohol provisions; the narrow
+  institute-recognition exception carries no implemented access step, which
+  sits with the 2016 medical entry.
+- `san-marino-narcotics-law-1956`: related link to the 1988 entry. No
+  scores touched; today's profile scores did not change, so the profile
+  file was not edited.
+
+The timeline now has an entry in the 1980s and 1990s. The 1956 law's own
+text remains unread (the entry still rests on the 1973 US report via
+Wikipedia); the exact 1988 and 1997 publication dates, which set their
+15-day commencements, are unrecovered, so both entries are dated by
+approval month. The two open 2021/2023 medical triage items belong to the
+modern medical story and are left for it.
+
+## Article
+
+- `articles/san-marino-narcotics-additions-1988.md` (354 words, four
+  headings): the 1988 hinge — equal punishment for possession and supply,
+  treatment exits, procedure, and the 1997 rewrite. Links to `/country/sm/`.
+
+## Validation
+
+- Parsed-history comparison of the working tree against HEAD: exactly three
+  entries added and one entry revised (related link); no other country's
+  entries changed, none removed.
+- `node scripts/data-status.cjs chain sm`: no flagged steps.
+  `npm run scores:triage -- sm`: the two open items are the pre-existing
+  2021/2023 medical entries, untouched by this pass.
+- `npm run history:test`: 39 passed. `npm run answers:test`: 16 passed.
+- Production build passed (4,218 pages). All three new history pages render.
+  Article: 352 words, four headings.
+- Concurrent agents' work in shared files is untouched; this commit stages
+  only the San Marino hunks and files.