Upload local files to a Google Apps Script project, replacing all remote files.

• Supports .gs, .js, .html, and appsscript.json files; automatically skips hidden files and node_modules
• Requires a Script Project ID via the --script flag; optionally specify a source directory with --dir (defaults to current directory)
• Destructive operation that replaces all files in the target project; requires user confirmation before execution
• Depends on gws authentication and global flags documented in gws-shared