displayDirectories in parse_mcp_gateway_log.cjs was creating nested groups that duplicated directory paths—once in the outer group context and again as a nested group title.

Changes

actions/setup/js/display_file_helpers.cjs

• Replaced displayDirectory() call with inline iteration
• Directory paths now render via core.info() instead of core.startGroup()
• Maintains single outer group without nested directory groups

Test updates

• Updated assertions in display_file_helpers.test.cjs and parse_mcp_gateway_log.test.cjs to verify directory paths appear in info messages

Before/After

Before:

START GROUP: === Listing All Gateway-Related Files ===
  START GROUP: 📁 Directory: /tmp/gh-aw/mcp-logs
    INFO: gateway.log
  END GROUP
END GROUP

After:

START GROUP: === Listing All Gateway-Related Files ===
INFO: 📁 Directory: /tmp/gh-aw/mcp-logs
  INFO: gateway.log
END GROUP

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