feat: initial BCP roster scouting tool

Paste a Best Coast Pairings event link to get roster-only stats:
faction/disposition distribution, per-team ITC rank rollups, and an
optional list-backfill for players missing faction/disposition data
(uses the viewer's own BCP auth token, stored client-side only).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitlab-ci.yml

@@ -0,0 +1,29 @@
+stages:
+  - build
+  - deploy
+
+build:
+  stage: build
+  script:
+    - npm ci
+    - npm run build
+  artifacts:
+    paths:
+      - dist/
+    expire_in: 1 hour
+  only:
+    - main
+  except:
+    - schedules
+
+deploy:
+  stage: deploy
+  script:
+    - rsync -avz --delete dist/ /var/www/domains/gateway-gamers.net/scouting/
+  only:
+    - main
+  except:
+    - schedules
+  environment:
+    name: production
+    url: https://scouting.gateway-gamers.net