ci: force-install sharp linux-x64 binary, clear omit env, verify load

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -16,11 +16,18 @@ jobs:
         with:
           node-version: 22
 
-      # npm (not bun) + --include=optional so Sharp's platform binary
-      # (@img/sharp-linux-x64, an optional dep) installs on the runner,
-      # which otherwise omits optional deps -> astro:assets MissingSharp
+      # The runner forces omit of optional deps, dropping @img/sharp-linux-x64
+      # (sharp's platform binary) -> astro:assets MissingSharp. Clear the omit
+      # env and force-install the linux/glibc/x64 sharp binary per sharp's
+      # official cross-platform install, then verify it loads.
       - name: Install dependencies
-        run: npm install --include=optional
+        env:
+          npm_config_omit: ""
+          npm_config_optional: "true"
+        run: |
+          npm install --include=optional
+          npm install --include=optional --os=linux --libc=glibc --cpu=x64 sharp
+          node -e "console.log('sharp', require('sharp').versions.sharp)"
 
       - name: Build site
         run: npm run build