Update tool classifications

Batch updates productivity classifications and categories for up to 100 tools.

Each item must include id and tool_type. Provide productivity and/or category to update. Use job_type to scope a productivity change to a specific role (see GET /organizations/:id/job_types). category and job_type are mutually exclusive within an item: category applies globally, so it can only be set when job_type is omitted. Changes are applied atomically — if any item fails validation, no changes are saved. On success, returns 204 No Content.

Note: productivity changes only affect future tool usage data, not historical records.

Requires Owner or Organization Manager role. Requires the Insights add-on.