feat: Add global --json flag for commands

[sqrrrl]

This change introduces a global --json flag to provide command output in a machine-readable JSON format.

Key changes:

• Added a global --json option in src/commands/program.ts.
• Removed local --json flags from src/commands/show-file-status.ts and src/commands/tail-logs.ts.
• Updated all commands to utilize the global --json flag and output appropriate JSON structures when the flag is present.
  • For commands that output lists of items (e.g., list-scripts, list-deployments), the JSON output is an object containing an array of those items.
  • For commands that perform actions (e.g., create-script, deploy), the JSON output includes relevant identifiers (like scriptId, deploymentId, version) or status messages.
  • For commands that open URLs, the JSON output is {"url": "openedUrl"} and the URL is still opened in the browser.
  • Informational text messages are suppressed when --json is active.
• Updated or created unit tests for all commands to ensure:
  • Correct JSON output when the --json flag is used.
  • Continued correct behavior for standard text output.
  • Proper mocking of dependencies and use of the runCommand utility.
  • Verification that text output is suppressed when JSON output is active.

Fixes #<issue_number_goes_here> (it's a good idea to open an issue first for discussion)

• [ ] npm run test succeeds.
• [ ] npm run lint succeeds.
• [ ] Appropriate changes to README are included in PR.