feat: replace Kaggle CSV with Wikipedia scraper for historical match data

Add scripts/scrape-wikipedia.ts that fetches all 22 World Cups (1930–2022)
from English Wikipedia via MediaWiki API, handles group sub-pages, AET/penalty
detection, and goal parsing, writing openfootball-format JSON to app/data/openfootball/.

Rewrite scripts/seed.ts to read these local JSON files instead of the Kaggle
CSV, producing 965 matches and 2716 goals with per-group assignments for all
historical tournaments (enabling group standings on tournament pages).

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

app/data/openfootball/2018/worldcup.groups.json

@@ -0,0 +1,76 @@
+{
+  "groups": [
+    {
+      "name": "Group A",
+      "teams": [
+        "Russia",
+        "Saudi Arabia",
+        "Egypt",
+        "Uruguay"
+      ]
+    },
+    {
+      "name": "Group B",
+      "teams": [
+        "Morocco",
+        "Iran",
+        "Portugal",
+        "Spain"
+      ]
+    },
+    {
+      "name": "Group C",
+      "teams": [
+        "France",
+        "Australia",
+        "Peru",
+        "Denmark"
+      ]
+    },
+    {
+      "name": "Group D",
+      "teams": [
+        "Argentina",
+        "Iceland",
+        "Croatia",
+        "Nigeria"
+      ]
+    },
+    {
+      "name": "Group E",
+      "teams": [
+        "Costa Rica",
+        "Serbia",
+        "Brazil",
+        "Switzerland"
+      ]
+    },
+    {
+      "name": "Group F",
+      "teams": [
+        "Germany",
+        "Mexico",
+        "Sweden",
+        "South Korea"
+      ]
+    },
+    {
+      "name": "Group G",
+      "teams": [
+        "Belgium",
+        "Panama",
+        "Tunisia",
+        "England"
+      ]
+    },
+    {
+      "name": "Group H",
+      "teams": [
+        "Colombia",
+        "Japan",
+        "Poland",
+        "Senegal"
+      ]
+    }
+  ]
+}