Sync Try fAIr with latest fAIr v3 and API updates

.github/workflows/backend_build_check.yml

@@ -0,0 +1,20 @@
+name: Build Docker Images
+on:
+  pull_request:
+    branches:
+      - master
+      - develop
+    paths:
+      - "backend/**"
+      - ".github/workflows/docker_build.yml"
+
+jobs:
+  # Backend API image. amd64-only (GDAL + source-built tippecanoe make arm64
+  # emulation slow). Build-only check for PRs
+  backend-build:
+    uses: hotosm/gh-workflows/.github/workflows/image_build.yml@4.0.3
+    with:
+      context: backend/
+      dockerfile: Dockerfile
+      image_name: ghcr.io/${{ github.repository_owner }}/fair/api
+      push: false

.github/workflows/deploy_frontend_s3.yml

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+name: Deploy Production Frontend to S3 & CloudFront
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'frontend/**'
+      - '.github/workflows/deploy_frontend_s3.yml'
+  workflow_dispatch:
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./frontend
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v3
+        with:
+          version: 9.8.0
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        run: echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install Dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Build Static Production Assets
+        env:
+          VITE_BASE_API_URL: "https://api.fair.hotosm.org/api/v1/"
+          VITE_NODE_ENV: "production"
+          VITE_FAIR_PROD_URL: "https://fair.hotosm.org/"
+          VITE_HANKO_URL: "https://login.hotosm.org"
+        run: pnpm run build
+
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: arn:aws:iam::670261699094:role/Github-AWS-OIDC
+          aws-region: us-east-1
+
+      - name: Sync Static Assets to S3
+        run: |
+          aws s3 sync dist/ s3://hotosm-fair-frontend-production \
+            --delete \
+            --cache-control "public, max-age=31536000, immutable" \
+            --exclude "index.html"
+
+          # Sync index.html with no-cache so client browsers instantly receive app updates
+          aws s3 cp dist/index.html s3://hotosm-fair-frontend-production/index.html \
+            --cache-control "no-cache, no-store, must-revalidate"
+
+      - name: Invalidate CloudFront CDN Cache
+        run: |
+          DISTRIBUTION_ID=$(aws cloudfront list-distributions --query "DistributionList.Items[?Aliases.Items && contains(Aliases.Items, 'fair.hotosm.org')].Id | [0]" --output text)
+          if [ "$DISTRIBUTION_ID" != "None" ] && [ -n "$DISTRIBUTION_ID" ]; then
+            aws cloudfront create-invalidation --distribution-id "$DISTRIBUTION_ID" --paths "/*"
+          fi