fix(transform): expand SELECT * in cot_positioning, fix src ref in fct_weather_daily

- obt_cot_positioning.sql: replace final SELECT * with explicit column list
  so linter can resolve schema without foundation.fct_cot_positioning in DB
- fct_weather_daily.sql: fix HASH(location_id, src."date") → located."date"
  (cast_and_clean CTE references FROM located, not FROM src)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

transform/sqlmesh_materia/models/serving/obt_cot_positioning.sql

@@ -98,7 +98,50 @@ WITH latest_revision AS (
   WINDOW w26 AS (ORDER BY report_date ROWS BETWEEN 25 PRECEDING AND CURRENT ROW), w52 AS (ORDER BY report_date ROWS BETWEEN 51 PRECEDING AND CURRENT ROW)
 )
 SELECT
-  *
+  report_date,
+  market_and_exchange_name,
+  cftc_commodity_code,
+  cftc_contract_market_code,
+  contract_units,
+  ingest_date,
+  open_interest,
+  managed_money_long,
+  managed_money_short,
+  managed_money_spread,
+  managed_money_net,
+  prod_merc_long,
+  prod_merc_short,
+  prod_merc_net,
+  swap_long,
+  swap_short,
+  swap_spread,
+  swap_net,
+  other_reportable_long,
+  other_reportable_short,
+  other_reportable_spread,
+  other_reportable_net,
+  nonreportable_long,
+  nonreportable_short,
+  nonreportable_net,
+  managed_money_net_pct_of_oi,
+  managed_money_long_short_ratio,
+  change_open_interest,
+  change_managed_money_long,
+  change_managed_money_short,
+  change_managed_money_net,
+  change_prod_merc_long,
+  change_prod_merc_short,
+  managed_money_net_wow,
+  concentration_top4_long_pct,
+  concentration_top4_short_pct,
+  concentration_top8_long_pct,
+  concentration_top8_short_pct,
+  traders_total,
+  traders_managed_money_long,
+  traders_managed_money_short,
+  traders_managed_money_spread,
+  cot_index_26w,
+  cot_index_52w
 FROM with_derived
 ORDER BY
   report_date