Update UI and migrations, fix dockerfile

db/migrations/031_writer_require_producer_name.sql

@@ -0,0 +1,18 @@
+-- Make producer mention mandatory in every AI writer result.
+
+UPDATE app_settings
+SET value_json = to_jsonb(
+    CASE
+      WHEN (value_json #>> '{}') LIKE '%explicitly mention producer_name%'
+        OR (value_json #>> '{}') LIKE '%явно упоминает producer_name%'
+        THEN value_json #>> '{}'
+      ELSE replace(
+        value_json #>> '{}',
+        '- Each post includes producer_name and producer_tag. producer_name can be a manufacturer, shop, or publishing source.',
+        '- Each post includes producer_name and producer_tag. producer_name can be a manufacturer, shop, or publishing source.' || E'\n' ||
+        '- The "text" field for every rewrite must explicitly mention producer_name at least once. Do not satisfy this only through producer_tag, hashtags, notes, or metadata.'
+      )
+    END
+),
+updated_at = NOW()
+WHERE key = 'ai_writer_contract';