Fix JavaScript formatting in merge_remote_agent_github_folder.cjs

[Copilot]

The jsweep commit introduced formatting inconsistencies in merge_remote_agent_github_folder.cjs that failed CI linting checks.

Changes

• Standardized quote style: Changed single quotes to double quotes for string literals ('\0' → "\0", '..' → "..")
• Removed trailing whitespace: Cleaned up line endings in validateSafePath() and mergeGithubFolder() functions

The original validate_memory_files.cjs cleanup was already properly formatted and all 21 tests pass.

- if (userPath.includes('\0')) {
+ if (userPath.includes("\0")) {
    throw new Error(`Invalid ${name}: contains null bytes`);
  }
-  
+
  // Reject paths that attempt to traverse up (..)
- if (userPath.includes('..')) {
+ if (userPath.includes("..")) {
    throw new Error(`Invalid ${name}: path traversal detected`);
  }

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[Copilot]

Pull request overview

This pull request fixes JavaScript formatting inconsistencies in merge_remote_agent_github_folder.cjs that were introduced by a previous jsweep commit and failed CI linting checks. The changes align the code with the project's Prettier configuration, which specifies double quotes for .cjs files.

Changes:

• Standardized string literals to use double quotes ('\0' → "\0", '..' → "..")
• Removed trailing whitespace from several blank lines in the file

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