history(cw,sx): replace 1928 estimates with dated 1929 drug ordinance

@@ -1740,2 +1740,10 @@ same convention, with the production-range clause covering the cultivation
 1→0 move. The 2001 reform's peer article was left untouched. Today's
 scores are unchanged.
+
+A [Curaçao/Sint Maarten gap pass](research/history-curacao-sintmaarten-gap-2026-10-26.md)
+on 26 October 2026 replaces both 1928 first-restriction estimates with the
+dated 30 July 1929 Antillean drug ordinance (100→25 and 100→24), verified
+against the 1960 consolidation's replacement notes and the commencement
+history. The 2018 joint prosecution guideline was read in Dutch and
+corroborates the checked tolerance entries. No article: the modern arc
+already has peer coverage. Estimated first bans fall from 62 to 60.

@@ -0,0 +1,55 @@
+# Curaçao and Sint Maarten: replacing the 1928 estimates with the 1929 ordinance
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md` and
+`WRITING.md`, both island profiles and their timelines before editing. No
+book was used. This pass replaces the two 1928 first-restriction
+estimates (window 1928–1960) with the dated 30 July 1929 Antillean drug
+ordinance. Cameroon and the other active country passes were left
+untouched.
+
+## Sources actually read
+
+- Netherlands Antilles archived Opium Ordinance consolidation
+  (repository.officiele-overheidspublicaties.nl, CVDR/1718/1): the notes
+  state the 1960 ordinance replaces the ordinance of 30 July 1929
+  (P.B. 1940, no. 138) on opium and other narcotics.
+- Overheid.nl commencement history (CVDR142115): the 1960 ordinance
+  signed 28 March 1960 (P.B. 1960, no. 65), in force 1 June 1964 under
+  decree of 29 April 1964.
+- The joint PG prosecution guideline 2018/01 for Curaçao, Sint Maarten
+  and BES (Dutch PDF, in force 1 Dec 2018, replacing the 1 July 2015
+  guideline): the cannabis table — 0–25 g seizure plus (conditional)
+  dismissal, 25–50 g fine up to NAF 500, 50 g+ halved hard-drug demand,
+  listed exceptions, cultivation by individual assessment. Corroborates
+  the checked 2018 entries; no entry changes made on its basis (it
+  renews, not introduces, the bands).
+- Dutch Wikipedia Opiumwet: the 1928 Act (12 May 1928, in force 1 October
+  1928, scope the Netherlands) was read, but its hemp clause could not be
+  pinned down on the page, so no Netherlands-1928 claim is carried into
+  the new entries.
+
+Deliberately not done: no new article. The modern arc (2018 guidelines,
+2024 ordinance and reform debates) already has peer articles; the 1929
+ordinance is a single dated fact. No changes to any checked entry; the
+1964 entries already describe the 1929→1960 replacement consistently.
+
+## What changed
+
+- Removed `cw-first-restriction-estimate` and
+  `sx-first-restriction-estimate` (no live references existed).
+- New `curacao-first-drug-ordinance-1929` (1929-07-30, ban, scored,
+  `before` FREE): 100→25. Related to the 1964 replacement entry.
+- New `sint-maarten-first-drug-ordinance-1929` (1929-07-30, ban, scored,
+  `before` FREE): 100→24. Related to the 1964 ordinance entry.
+- Chain shape unchanged apart from the sharpened date (1928→1929);
+  estimated first bans fall from 62 to 60. Today's profile scores are
+  unchanged.
+
+## Validation
+
+- `node scripts/data-status.cjs chain cw/sx`: one step each, 0 flagged.
+  Triage: 1 scored, 0 open each.
+- `npm run history:test` and `npm run answers:test`: all pass.
+- Production build passes; both new history pages render.
+- Concurrent agents' work in shared files is untouched; this commit stages
+  only the Dutch Caribbean hunks and files.