articles(uz,us,pk): three first-ban articles from backlog top

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+# First-ban articles: Soviet 1934 decree, California 1913, Punjab 1914
+
+Research checked on 26 October 2026. Read `DATA-MAINTENANCE.md`, `WRITING.md`,
+`BOOKS.md` and the three history entries with their profiles before writing. No
+book was used. No `changes.yaml` entry was added, corrected or re-scored; three
+articles were added for entries that topped `npm run articles:backlog` without
+one. No profiles, scores or score timelines changed.
+
+## Articles added
+
+- `articles/uzbekistan-soviet-ban-1934.md` — the Union decree of 27 October 1934
+  (No. 110/2466) prohibiting sowing of Indian hemp and the opium poppy except
+  for medical/scientific needs, with criminal liability and confiscation, in
+  force from 1935. Covers the shared first-ban event filed under Russia,
+  Ukraine, Belarus, Moldova, Georgia, Armenia, Azerbaijan, Kazakhstan,
+  Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan.
+- `articles/us-state-bans-1913.md` — California's 1913 Poison Act amendments
+  (in force 10 August 1913), the pharmacy board's campaign, the 1911 Finger
+  letter and the 1915 prescription patch, as the start of the state-ban process.
+  Adds one journal source to the entry's own two.
+- `articles/pakistan-punjab-excise-act-1914.md` — the licensed excise trade in
+  bhang, charas and ganja, the 1915 Baluchistan follow-up, and the line through
+  the 1931 and 1949 acts to the 1979 prohibition.
+
+## Sources actually read
+
+- [USSR decree of 27 October 1934 reproduced by Istmat](https://istmat.org/node/42491):
+  Russian original of the 1934 collection, articles 1–7. Article 1 bans sowing
+  except for crops exclusively covering USSR medical/scientific needs; articles
+  2–4 set the yearly area and permit system; article 5 orders criminal liability
+  with mandatory confiscation and republic code amendments; article 6 commences
+  the decree in 1935; article 7 repeals the 1927 poppy measure. Signatures
+  Kalinin, Molotov, Yenukidze. Read in full on 26 October 2026.
+- [California NORML: The Origins of California's 1913 Cannabis Law](https://www.canorml.org/the-origins-of-californias-1913-cannabis-law/):
+  Dale Gieringer's summary (revised January 2024) of his 1999
+  peer-reviewed article. Read in full: board campaign, 1875/1907 measures,
+  Finger's 2 July 1911 letter, Wright's reply, loco-weed, unanimous passage,
+  10 August 1913 commencement, the section 8/8(a) miswording, the corn-remedy
+  exception, no evidence of use against medicine, and the 1915 patch. The 1999
+  journal article (26(2), pp. 237–288) is added as a print source; the journal
+  text itself was not re-read beyond the author's summary.
+- [Balochistan Excise Regulation, 1915 (Baln Regulation I of 1915)](https://balochistan.gov.pk/wp-content/uploads/2024/09/The-Balochistan-Excise-Regulation-1915-1915.pdf):
+  official PDF read via `pdftotext` on 26 October 2026. Intoxicating-drug
+  definition (fruiting tops as bhang/siddhi/ganja, charas resin, mixtures);
+  licence requirements for manufacture (s. 13) and sale (s. 17); hemp-plant
+  cultivation offences; licensee duties. Used for the regulation's own
+  provisions and as corroboration of the 1915 follow-up.
+- The Missouri 1889, Tax Act 1937, Pakistan 1931/1949/1979, Uzbekistan 1987 and
+  1995 entries are linked as already-sourced context from the country's other
+  entries, per `WRITING.md`; their sources were not re-read.
+
+## Not verified in this pass
+
+- The Punjab Excise Act, 1914 text on India Code
+  (`indiacode.nic.in/.../6_the_punjab_excise_act_1914.pdf`) could not be
+  opened here (`curl` failed with no response); claims about the 1914 Act rest
+  on the entry's checked source and the Baluchistan regulation read now.
+- The Iraqi Legislation Database page for Law 12 of 1933 returned 403 to
+  scripted fetch, and the citing Al-Mansour journal page rendered only its
+  issue listing, so no Iraq article was attempted; `iraq-hemp-cultivation-law-1933`
+  stays at the top of the backlog.
+- The New Zealand legislation site answered 202 (bot check) to scripted fetch;
+  no NZ article was attempted.
+- Scores, profiles and timelines are untouched. The India chain warning
+  (`india-ndps-act-1985` starting below the unregulated state) is pre-existing
+  and unchanged.