Align all displayed timings to the right

[Chemaclass]

📚 Description

Implements #577 - Aligns the timing display for set_up_before_script and tear_down_after_script hooks to the right, matching the alignment of regular test timings for improved visual consistency.

Before

  Running set_up_before_script... done (2.03s)
  ✓ Passed: test_example                                                  12ms
  Running tear_down_after_script... done (1.05s)

After

● set_up_before_script                                               2.03s
✓ Passed: test_example                                                 12ms
● tear_down_after_script                                             1.05s

The new format:

• Uses the existing bashunit::str::rpad() function for right-alignment (same as test timings)
• Replaces verbose "Running...done" text with a clean bullet point (●) prefix
• Removes parentheses around timings since alignment makes them visually clear
• Output appears only on completion (no progressive "Running..." feedback)

🔖 Changes

• src/console_results.sh:
  • print_hook_running(): Now produces no output (full line printed on completion)
  • print_hook_completed(): Prints complete right-aligned line using rpad() with bullet prefix
• tests/unit/console_results_test.sh: Added 6 new unit tests for hook output functions
• tests/acceptance/bashunit_lifecycle_output_test.sh: Updated assertions to match new format
• CHANGELOG.md: Added entry in Unreleased section
• docs/test-files.md: Updated hook output examples
• docs/blog/2025-12-19-release-0-31.md: Updated lifecycle hook example

✅ To-do list

• I updated the CHANGELOG.md to reflect the new feature or fix
• I updated the documentation to reflect the changes

Closes #577

[carlfriedrich]

Great, thanks a lot! 🙌