chore(workflow): silence docs data logs

- Redirect updater output to avoid leaking RPC URLs and API keys

- Ensure the ignored data directory exists before copying generated files

Author: mouseless0x

.github/workflows/update-docs-data.yaml

@@ -75,12 +75,15 @@ jobs:
       - name: Generate docs data
         working-directory: docs-data-updater
         run: |
-          # Run the data generation script
-          pnpm start
+          # Silence all output: error messages can include RPC URLs with
+          # embedded API keys, and this public repo's logs are world-readable
+          pnpm start > /dev/null 2>&1
           
       - name: Copy generated markdown files to docs data directory
         run: |
           # Copy the three generated markdown files from docs-data-updater/data/ to data/
+          # (data/ is gitignored since #156, so it doesn't exist in a fresh checkout)
+          mkdir -p data
           if [ -d "docs-data-updater/data" ]; then
             # Copy the specific generated files
             for file in chain-details.md supported-chains.md supported-tokens.md; do