feat: add CI/CD workflows for Cloudflare Pages deployment

.github/workflows/ci.yml

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+name: ci
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install deps
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: ./dist
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: miso-landing-web
+      url: ${{ steps.deploy-step.outputs.deployment-url }}
+    outputs:
+      deployment-url: ${{ steps.deploy-step.outputs.deployment-url }}
+    steps:
+      - name: Download Artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: ./dist
+
+      - name: Deploy preview to Cloudflare Pages
+        id: deploy-step
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ vars.CLOUDFLARE_ACCOUNT_ID }}
+          command: pages deploy ./dist --project-name=miso-landing-web --branch=${{ github.head_ref }}

.github/workflows/manual.yml

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+name: Deploy to Production
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install deps
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist
+          path: ./dist
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    environment:
+      name: miso-landing-web
+      url: ${{ steps.deploy-step.outputs.deployment-url }}
+    outputs:
+      deployment-url: ${{ steps.deploy-step.outputs.deployment-url }}
+    steps:
+      - name: Download Artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: dist
+          path: ./dist
+
+      - name: Deploy to Cloudflare Pages
+        id: deploy-step
+        uses: cloudflare/wrangler-action@v3
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: ${{ vars.CLOUDFLARE_ACCOUNT_ID }}
+          command: pages deploy ./dist --project-name=miso-landing-web

.github/workflows/pr.yml

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+name: "Semantic PR"
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v4
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          types: |
+            fix
+            feat
+            chore
+            revert