feat(get-user): emit brand_chrome for Hamkar brandManaged opt-in

Expose brand_chrome so apps apply header/menu/body colors only after SuperAdmin color save.

Co-authored-by: Cursor <cursoragent@cursor.com>

prisma/backfill-appearance-from-registry.ts

@@ -207,11 +207,13 @@ async function main() {
 
     if (tenant.product === 'hamkar') {
       const managed = existingUi?.kind === 'hamkar' && existingUi?.settingsManaged === true
+      const brandManaged = existingUi?.kind === 'hamkar' && existingUi?.brandManaged === true
       const built = buildHamkarUiFromBrand({
         primaryColor: primary,
         secondaryColor: secondary,
         backgroundColor: background,
         settingsManaged: managed,
+        brandManaged,
         registryMode: registryMode || existingUi?.registryMode || 'dynamicMode',
         settings: managed ? existingUi.settings : undefined,
       })

prisma/lib/appearance-builders.ts

@@ -34,6 +34,7 @@ export function buildHamkarUiFromBrand(input: {
   secondaryColor?: string | null
   backgroundColor?: string | null
   settingsManaged?: boolean
+  brandManaged?: boolean
   registryMode?: string | null
   settings?: {
     pricing_box_theme?: string
@@ -57,6 +58,7 @@ export function buildHamkarUiFromBrand(input: {
   const base = {
     kind: 'hamkar' as const,
     settingsManaged: Boolean(input.settingsManaged),
+    brandManaged: Boolean(input.brandManaged),
     registryMode: input.registryMode || 'dynamicMode',
     brand: {
       // Keep nulls — do NOT invent #1d4ed8 (causes wrong accent vs live registry)

prisma/seed-hamkar-default-snapshots.ts

@@ -171,6 +171,7 @@ async function main() {
         ? keepSnapshot.brand?.backgroundColor
         : existing?.brand?.backgroundColor ?? brandBackground,
       settingsManaged: Boolean(existing?.settingsManaged),
+      brandManaged: Boolean(existing?.brandManaged),
       registryMode: restore
         ? keepSnapshot.registryMode
         : existing?.registryMode || registryMode,