Migrate from npm to pnpm across entire project

• Update all GitHub workflow files to use pnpm instead of npm
• Replace npm commands with pnpm equivalents in devcontainer scripts
• Remove package-lock.json files and update to use pnpm-lock.yaml
• Consolidate node version references to use server/.nvmrc

.github/workflows/sdk.yml

@@ -20,18 +20,21 @@ jobs:
         with:
           persist-credentials: false
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@a7487c7e89a18df4991f7f222e4898a00d66ddda # v4.1.0
+
       # Setup .npmrc file to publish to npm
       - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version-file: './open-api/typescript-sdk/.nvmrc'
           registry-url: 'https://registry.npmjs.org'
-          cache: 'npm'
-          cache-dependency-path: '**/package-lock.json'
+          cache: 'pnpm'
+          cache-dependency-path: '**/pnpm-lock.yaml'
       - name: Install deps
-        run: npm ci
+        run: pnpm install --frozen-lockfile
       - name: Build
-        run: npm run build
+        run: pnpm build
       - name: Publish
-        run: npm publish
+        run: pnpm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}