fix(build): use multi-stage Dockerfile and add .dockerignore

- Change .woodpecker.yml to use Dockerfile (multi-stage) instead of Dockerfile.simple
- Add .dockerignore to exclude node_modules and build artifacts
- Reduces image size to avoid 413 Payload Too Large error

.dockerignore

@@ -0,0 +1,28 @@
+node_modules
+.git
+.gitignore
+.env
+.env.local
+.env.*.local
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.vscode
+.idea
+*.log
+.DS_Store
+.output
+.vinxi
+dist
+*.tsbuildinfo
+coverage
+.nyc_output
+.cache
+.next
+.vercel
+netlify
+*.test.ts
+*.spec.ts
+**/__tests__
+**/test
+**/tests

.woodpecker.yml

@@ -8,7 +8,7 @@ steps:
     settings:
       registry: registry.nxtgauge.com
       repo: nxtgauge-frontend-solid
-      dockerfile: Dockerfile.simple
+      dockerfile: Dockerfile
       tags:
         - ${CI_COMMIT_SHA}
         - latest