docker(deps): bump node from 24-alpine to 26-alpine

Dockerfile

@@ -1,5 +1,5 @@
 # Multi-stage build for optimization
-FROM node:24-alpine AS builder
+FROM node:26-alpine AS builder
 
 # Security: Create non-root user for build stage
 RUN addgroup -g 1001 -S nodejs && \

Dockerfile.dev

@@ -1,5 +1,5 @@
 # Development Dockerfile with Security Hardening
-FROM node:24-alpine
+FROM node:26-alpine
 
 # Security: Create non-root user
 RUN addgroup -g 1001 -S nodejs && \