Hiding the LLM Cost Line on AI Stack Cards
The Platform at a Glance article already called out commit b670492: the engineering hub chips stopped implying a monthly token bill for local Graphify context. The AI tab still had a leftover on the stack cards themselves — a cost line next to Graphify, REPO_INDEX, Oxlint, Semgrep, and Lighthouse.
That row was honest in the data layer (`costKey` still says “None (tree-sitter, local)”) and dishonest in the UI. Visitors scanning `/engineering/ai` read “cost” as SaaS pricing even when the value is None. I hid the line in `EngineeringAi.tsx` and left the copy in `docs/AI_CONTEXT.md` and `AI_ZERO_LLM_KEYS` to do the explaining.
`AI_STACK_ITEMS` in `src/data/aiContextData.ts` still carries `name`, `purposeKey`, and `costKey`. The cards used to render all three. Purpose is the useful bit: Graphify is an AST code graph, REPO_INDEX is a Node file-tree scan, Lighthouse hits local `vite preview` instead of PageSpeed.