rename: cloud-installer → cloud-sync

'installer' implied one-way install (matching packwiz-installer); this
tool is bidirectional sync (pull on launch, push on exit). Aligns with
the existing automc <scope>-<role> pattern: cloud-svc ↔ cloud-sync,
matching mc-router, mc-wrapper, gate-waker.

Gitea repo renamed via API (id 2974 preserved); jar filename now
cloud-sync-<version>.jar. Build verified post-rename.

.gitea/workflows/ci.yaml

@@ -26,8 +26,8 @@ jobs:
         if: startsWith(github.ref, 'refs/tags/v')
         uses: actions/upload-artifact@v4
         with:
-          name: cloud-installer-jar
-          path: build/libs/cloud-installer-*.jar
+          name: cloud-sync-jar
+          path: build/libs/cloud-sync-*.jar
 
   release:
     runs-on: ubuntu-latest
@@ -38,7 +38,7 @@ jobs:
 
       - uses: actions/download-artifact@v4
         with:
-          name: cloud-installer-jar
+          name: cloud-sync-jar
           path: build/libs/
 
       - name: Publish release
@@ -51,7 +51,7 @@ jobs:
             -d "{\"tag_name\":\"${tag}\",\"name\":\"${tag}\",\"draft\":false,\"prerelease\":false}" \
             "${GITEA_SERVER_URL}/api/v1/repos/${{ gitea.event.repository.full_name }}/releases" > /tmp/release.json
           release_id=$(jq -r .id /tmp/release.json)
-          for jar in build/libs/cloud-installer-*.jar; do
+          for jar in build/libs/cloud-sync-*.jar; do
             curl -sS -X POST \
               -H "Authorization: token ${gh_token}" \
               -F "attachment=@${jar}" \