Close remaining node/pnpm version drift after the pnpm 10 bump

- frontend/.nvmrc was still pinned to 16, left behind by the node 16->20
  bump everywhere else (Dockerfile, CI matrices). A contributor running
  'nvm use' in frontend/ would land on node 16, which cannot even run
  pnpm 10 (requires node >=18) -- CI never reads .nvmrc, so this was
  invisible to every check.
- pnpm/action-setup 'version: 10' floated the patch release in CI,
  inconsistent with the exact 10.10.0 pin now used in Dockerfile,
  Dockerfile.e2e and packageManager. Pinned all ten occurrences across
  ci-frontend.yml, ci-frontend-api.yml and release.yml to 10.10.0.

.github/workflows/ci-frontend-api.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node
@@ -69,7 +69,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node
@@ -105,7 +105,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node

.github/workflows/ci-frontend.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node
@@ -69,7 +69,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node
@@ -105,7 +105,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node
@@ -141,7 +141,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Check bundle size
@@ -169,7 +169,7 @@ jobs:
       - name: Install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: Install node

.github/workflows/release.yml

@@ -38,7 +38,7 @@ jobs:
       - name: install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: install node
@@ -113,7 +113,7 @@ jobs:
       - name: install pnpm
         uses: pnpm/action-setup@v6.0.4
         with:
-          version: 10
+          version: 10.10.0
           run_install: false
 
       - name: install node

frontend/.nvmrc

@@ -1 +1 @@
-16
+20