ci: remove redundant build-web job

test + deploy-web already cover what build-web was doing — the test
stage validates the build via 'npm run test' (which runs vite build),
and deploy-web builds and ships the dist/ to the live site. Keeping
build-web around just burned a runner slot to produce a dist/ artifact
nobody consumed.

.gitlab-ci.yml

@@ -91,22 +91,6 @@ deploy-nsite:
       --use-fallback-relays
       --use-fallback-servers
 
-build-web:
-  stage: build
-  timeout: 10 minutes
-  needs: []
-  rules:
-    - if: $CI_COMMIT_TAG
-      when: never
-    - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH
-  script:
-    - npm ci
-    - npm run build
-    - cp dist/index.html dist/404.html
-  artifacts:
-    paths:
-      - dist/
-
 release-notes:
   stage: build
   timeout: 2 minutes