diff --git a/.gitea/workflows/build-harbor.yml b/.gitea/workflows/build-harbor.yml
index cf713b8..c492c8c 100644
--- a/.gitea/workflows/build-harbor.yml
+++ b/.gitea/workflows/build-harbor.yml
@@ -23,6 +23,7 @@ jobs:
 
 
       - name: Build & tag
+        timeout-minutes: 60
         env:
           REG:  ${{ secrets.HARBOR_REGISTRY }}
           PROJ: ${{ secrets.HARBOR_PROJECT }}
diff --git a/Dockerfile b/Dockerfile
index e6e4baf..d764bef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 FROM node:22-alpine AS frontend-dependencies
 WORKDIR /opt/app
 COPY frontend/package.json frontend/package-lock.json ./
-RUN npm ci
+RUN npm ci --prefer-offline --no-audit --progress=false
 
 # Stage 2: Build frontend
 FROM node:22-alpine AS frontend-builder
@@ -16,7 +16,8 @@ FROM node:22-alpine AS backend-dependencies
 RUN apk add --no-cache python3
 WORKDIR /opt/app
 COPY backend/package.json backend/package-lock.json ./
-RUN npm ci
+RUN npm ci --prefer-offline --no-audit --progress=false || \
+    (echo "npm ci failed, retrying without cache..." && npm ci --no-audit --progress=false)
 
 # Stage 4: Build backend
 FROM node:22-alpine AS backend-builder
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 9b37398..1b1ea14 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -58,7 +58,6 @@
         "@types/archiver": "^6.0.3",
         "@types/clamscan": "^2.4.1",
         "@types/cookie-parser": "^1.4.8",
-        "@types/cron": "^2.4.0",
         "@types/express": "^5.0.1",
         "@types/mime-types": "^2.1.4",
         "@types/multer": "^1.4.12",
@@ -66,7 +65,6 @@
         "@types/nodemailer": "^6.4.17",
         "@types/passport-jwt": "^4.0.1",
         "@types/qrcode-svg": "^1.1.5",
-        "@types/sharp": "^0.32.0",
         "@types/supertest": "^6.0.3",
         "@types/uuid": "^10.0.0",
         "@typescript-eslint/eslint-plugin": "^8.29.1",
@@ -4103,16 +4101,6 @@
       "integrity": "sha512-he+DHOWReW0nghN24E1WUqM0efK4kI9oTqDm6XmK8ZPe2djZ90BSNdGnIyCLzCPw7/pogPlGbzI2wHGGmi4O/Q==",
       "dev": true
     },
-    "node_modules/@types/cron": {
-      "version": "2.4.3",
-      "resolved": "https://registry.npmjs.org/@types/cron/-/cron-2.4.3.tgz",
-      "integrity": "sha512-ViRBkoZD9Rk0hGeMdd2GHGaOaZuH9mDmwsE5/Zo53Ftwcvh7h9VJc8lIt2wdgEwS4EW5lbtTX6vlE0idCLPOyA==",
-      "deprecated": "This is a stub types definition. cron provides its own type definitions, so you do not need this installed.",
-      "dev": true,
-      "dependencies": {
-        "cron": "*"
-      }
-    },
     "node_modules/@types/eslint": {
       "version": "9.6.1",
       "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-9.6.1.tgz",
@@ -4313,16 +4301,6 @@
         "@types/send": "*"
       }
     },
-    "node_modules/@types/sharp": {
-      "version": "0.32.0",
-      "resolved": "https://registry.npmjs.org/@types/sharp/-/sharp-0.32.0.tgz",
-      "integrity": "sha512-OOi3kL+FZDnPhVzsfD37J88FNeZh6gQsGcLc95NbeURRGvmSjeXiDcyWzF2o3yh/gQAUn2uhh/e+CPCa5nwAxw==",
-      "deprecated": "This is a stub types definition. sharp provides its own type definitions, so you do not need this installed.",
-      "dev": true,
-      "dependencies": {
-        "sharp": "*"
-      }
-    },
     "node_modules/@types/superagent": {
       "version": "8.1.9",
       "resolved": "https://registry.npmjs.org/@types/superagent/-/superagent-8.1.9.tgz",
diff --git a/backend/package.json b/backend/package.json
index 8376142..32d2c2d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -63,7 +63,6 @@
     "@types/archiver": "^6.0.3",
     "@types/clamscan": "^2.4.1",
     "@types/cookie-parser": "^1.4.8",
-    "@types/cron": "^2.4.0",
     "@types/express": "^5.0.1",
     "@types/mime-types": "^2.1.4",
     "@types/multer": "^1.4.12",
@@ -71,7 +70,6 @@
     "@types/nodemailer": "^6.4.17",
     "@types/passport-jwt": "^4.0.1",
     "@types/qrcode-svg": "^1.1.5",
-    "@types/sharp": "^0.32.0",
     "@types/supertest": "^6.0.3",
     "@types/uuid": "^10.0.0",
     "@typescript-eslint/eslint-plugin": "^8.29.1",