Tool tracking now visible across pricing + role pages

Pricing, /for-mechanics, and /for-managers now each carry a dedicated tool-tracking section so visitors land on the right framing for their role. /pricing flags tools as in-core ('built-in, not a paid add-on') beside the optional-hardware section. Mechanics page emphasizes the shop side: kit checkout, low-stock alerts on consumables, PM on power tools. Managers page emphasizes the analytics side: checkout utilization, low-stock dashboard cards, fleet tool book value. All routes link back to /product/tool-tracking for the full detail.