[CI] Add more workflows

.gitea/workflows/build-push-beta.yml

@@ -1,6 +1,7 @@
 on: 
-  - push
-  - workflow_dispatch
+  push:
+    paths:
+      - 'src/**'
 name: Build and upload website update to beta site
 jobs:
   build-upload:

.gitea/workflows/build-push-main.yml

@@ -0,0 +1,31 @@
+on: 
+  - workflow_dispatch
+name: Build and upload website update to main site
+jobs:
+  build-upload:
+    name: build-and-upload
+    runs-on: ubuntu-latest
+    steps:
+    - name: Pull repo
+      uses: actions/checkout@v6
+      with:
+        ref: main
+    - name: Sign into gitea registry
+      uses: actions/docker-login@v3
+      with:
+        username: ${{ vars.REGISTRY_USER_USERNAME }}
+        password: ${{ secrets.REGISTRY_USER_PASSWORD }}
+        registry: ${{ vars.REGISTRY_BASE_URL }}
+    - name: Run node build
+      uses: actions/node-action@main
+      with:
+        script: 'build.js'
+        workdir: /
+    - name: Push changes to webserver
+      uses: actions/ftp-deploy@v4.3.6
+      with:
+        server: ${{ vars.FTP_URL }}
+        username: ${{ vars.FTP_USERNAME }}
+        password: ${{ secrets.FTP_PASSWORD }}
+        local-dir: dist/
+        server-dir: ${{ vars.SERVER_DIR_MAIN }}