[FEATURE] Add column character limit with ellipsis and Flux tooltip

[aleRibeiro0209]

⚡ PowerGrid - Pull Request

• Bug fix
• Enhancement
• New feature
• Breaking change

Description

Adds two new column methods to control text display:

• ->limit(int $characters, string $end = '...') — truncates the displayed
  value to the given number of characters with an ellipsis. Works in every theme.
• ->tooltip(bool $enabled = true, string $position = 'top') — shows the full,
  untruncated value in a tooltip. Rendered via <flux:tooltip> in the Flux theme;
  themes that don't ship a table.column-tooltip view simply keep the plain
  truncated text.

Example:

Column::add()
    ->title('Description')
    ->field('description')
    ->limit(24)
    ->tooltip();

Implementation notes:

• Shipped as a built-in TruncatePlugin that registers the two Column macros;
  the actual rendering lives in CellRenderer so it composes with content classes
  and is skipped for templated/index columns.
• The tooltip only renders when the value was actually shortened — a value
  shorter than the limit shows in full with no tooltip.
• Added @method annotations on Column so IDEs autocomplete the new methods.
• Covered by feature tests (truncation, no-truncation below limit, theme scoping).

Related Issue(s):

Documentation

This PR requires Documentation update?

• Yes
• No
• I have already submitted a Documentation pull request.