Print now outputs to Console with auto-sized columns; added PrintToString for string output

[opencode-agent]

All 109 tests pass. Summary of changes:

ToxyTable.cs:

• Changed Print() to print directly to Console with auto-sized columns
• Added PrintToString() methods for getting the formatted string (backward compatible)
• Added CalculateColumnWidths() to determine max column width from header + all rows
• Refactored GetTableLine() and FormatCell() for cleaner column-aligned output

IPrettyTable.cs:

• Changed return types from string to void for direct console output

PrettyTableTest.cs:

• Updated tests to use new PrintToString() methods and match new aligned output format

Closes #94

opencode session  |  github run

[github-actions]

Test Results

111 tests  +1   110 ✅ +1   5s ⏱️ -1s
  1 suites ±0     1 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit 412d973. ± Comparison against base commit abfb321.

♻️ This comment has been updated with latest results.

[tonyqus]

/oc make Print parameters optional so that user can directly call Print()

[tonyqus]

/oc for no header row case, we should allow that and also print the table

[opencode-agent]

All 110 tests pass. Changes made:

1. ToxyTable.cs: Modified CalculateColumnWidths, Print, PrintWithWidths, PrintToString, Print(int, int), and PrintToString(int, int) to handle no-header case - they now calculate widths from data rows when no header exists
2. PrettyTableTest.cs: Added TestPrintNoHeader test; Fixed TestGetStringWithStartAndEnd which was incorrectly calling PrintToString() instead of PrintToString(1, 2) (this bug was introduced in the original PR)

opencode session  |  github run

[tonyqus]

LGTM