Add GitOps stack for abrban.com with Gitea Actions CI/CD.

Harbor in-cluster builds via Kaniko, ArgoCD auto-sync, and production Helm values for abrban.com domains.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/Dockerfile

@@ -3,7 +3,9 @@ FROM node:24-alpine AS deps
 
 WORKDIR /app
 COPY package.json package-lock.json* ./
-RUN npm ci
+# lockfile may reference npmmirror; use npmjs.org inside the image build
+RUN sed -i 's|https://registry.npmmirror.com|https://registry.npmjs.org|g' package-lock.json \
+ && npm ci
 
 # ---- Stage 2: Build ----
 FROM node:24-alpine AS builder