Jarvus ExtJS (Slate classic apps)

House conventions for the ExtJS 6.2.0.981 classic-toolkit apps built by Jarvus for the Slate ecosystem, distilled from the most mature code in the fleet (the Slate CBL apps, 2016–2023, and the best parts of SlateAdmin). ExtJS is legacy here: no new apps will be built on it, and it will eventually be removed. Until then, the goal is stability and convergence — make old code look like the house style, squeeze out state/component jank, and fix bugs without expanding the surface area.

The frozen-stack contract

These are hard constraints, not preferences. The framework and its ecosystem are pinned, and several load-bearing override packages (jarvus-routing, jarvus-lazydata, jarvus-hotfixes) live on branches named for the exact framework build (ext/6/2/0/981). Their overrides patch framework internals by name; on any other build they may silently stop applying.