fix(update_column): sanitize status labels and normalize tool inputs

[almogru]

Summary:

• Fixes update_column failures for status/dropdown label updates.
• Handles REVISION_MISMATCH by retrying once with a fresh column revision.
• Truncates status label descriptions to 80 chars.
• Converts dropdown label additions into MODIFY_LABELS actions.

New fixes for INVALID_INPUT:

• Strips id from status label updates to avoid invalid/new-label id errors.
• Coerces status settings received in UI object shape (labels_positions_v2/labels_colors/done_colors) into API-required { labels: [...] } and maps labels_colors.var_name to status color enums.

Safety:

• update_column explicitly rejects itemId/value usage (use change_item_column_values instead).

Test plan:

• npm test -- --testPathPattern=update-column-tool

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