fix: Change npm ci to npm install in all Dockerfiles to resolve package resolution issues

admin/Dockerfile

@@ -1,5 +1,5 @@
 # Admin Dockerfile - Vue 3 Admin Dashboard
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set working directory
 WORKDIR /app
@@ -8,7 +8,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies
-RUN npm ci
+RUN npm install
 
 # Copy source code
 COPY . .

client/Dockerfile

@@ -1,5 +1,5 @@
 # Client Dockerfile - Vue 3 Client UI
-FROM node:18-alpine
+FROM node:20-alpine
 
 # Set working directory
 WORKDIR /app
@@ -8,7 +8,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies
-RUN npm ci
+RUN npm install
 
 # Copy source code
 COPY . .

server/Dockerfile

@@ -8,7 +8,7 @@ WORKDIR /app
 COPY package*.json ./
 
 # Install dependencies
-RUN npm ci --omit=dev
+RUN npm install --omit=dev
 
 # Copy source code
 COPY . .