fix: normalize Bosnia & Herzegovina and USA team name variants

Add TEAM_ALIASES to lib/wiki-scraper.ts applied at extraction time so both
scraper and sync consistently produce canonical names. Removes the duplicate
alias map from seed.ts in favour of the shared normalizeTeam() export.

Aliases added:
  Bosnia & Herzegovina  → Bosnia and Herzegovina
  USA                   → United States

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

scripts/seed.ts

@@ -5,6 +5,7 @@ import { readFileSync, existsSync } from 'fs'
 import path from 'path'
 import { fileURLToPath } from 'url'
 import { getIso } from '../lib/iso-codes'
+import { normalizeTeam } from '../lib/wiki-scraper'
 
 const DATABASE_URL = process.env.DATABASE_URL ?? 'postgres://wc:wc@localhost:5432/worldcup'
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
@@ -15,16 +16,6 @@ const YEARS = [
   1978,1982,1986,1990,1994,1998,2002,2006,2010,2014,2018,2022,
 ]
 
-// Normalize team names from Wikipedia to canonical DB names
-const TEAM_ALIASES: Record<string, string> = {
-  'West Germany': 'Germany',
-  'Korea Republic': 'South Korea',
-  'IR Iran': 'Iran',
-}
-
-function normTeam(name: string): string {
-  return TEAM_ALIASES[name] ?? name
-}
 
 function readJson<T>(filePath: string): T | null {
   if (!existsSync(filePath)) return null
@@ -174,7 +165,7 @@ async function run() {
   const teamCache = new Map<string, number>()
 
   async function upsertTeam(rawName: string): Promise<number> {
-    const name = normTeam(rawName)
+    const name = normalizeTeam(rawName)
     if (teamCache.has(name)) return teamCache.get(name)!
     const iso2 = getIso(name)
     const [row] = await db.execute(sql`
@@ -207,8 +198,8 @@ async function run() {
         INSERT INTO tournaments (year, host, winner, runner_up, third_place, fourth_place, teams_count)
         VALUES (
           ${year}, ${meta.host || null},
-          ${normTeam(meta.winner ?? '') || null}, ${normTeam(meta.runner_up ?? '') || null},
-          ${normTeam(meta.third_place ?? '') || null}, ${normTeam(meta.fourth_place ?? '') || null},
+          ${normalizeTeam(meta.winner ?? '') || null}, ${normalizeTeam(meta.runner_up ?? '') || null},
+          ${normalizeTeam(meta.third_place ?? '') || null}, ${normalizeTeam(meta.fourth_place ?? '') || null},
           ${meta.teams_count ?? null}
         )
         ON CONFLICT (year) DO UPDATE SET