Quote creation was blocked for any new material whose typed name is not
one of the 8 canonical category names: api.materials.create threw
«دسته ... در سامانه تعریف نشده است» and the failed create cascaded a
bogus temp material_id into the quote payload (invalid-payload error).
v2.5+ model: materials are global (name UNIQUE) and the category
attaches via the supplier (first-link-wins). The backend already
accepts category_id=null (MaterialCreate schema + material_service).
This removes the frontend-only hard block: unknown category names now
create the material with category_id null, and the category is derived
automatically from the first linked supplier on quote save. The 8
canonical categories are still never auto-created (no rogue-category
regression).
Verified end-to-end through the real API: create «سیم» (category null)
→ supplier → quote via material_id → 201/201/201 with
material.category_id derived from the supplier; lint + build green.
whqreza
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