ci: use node-linker=hoisted instead of shamefully-hoist

shamefully-hoist still creates symlinks to .pnpm store which bun
can't follow (EISDIR errors). node-linker=hoisted creates actual
copies in a flat node_modules layout, like npm.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -97,7 +97,7 @@ jobs:
 
       - name: Install dependencies (hoisted for bun compile compatibility)
         run: |
-          echo "shamefully-hoist=true" >> .npmrc
+          echo "node-linker=hoisted" >> .npmrc
           pnpm install --frozen-lockfile
 
       - name: Generate Prisma client