Structured data validates without critical errors

Malformed JSON-LD, wrong case on @type, or typo'd property names like adress cause schema.org parsers to silently discard the block, which strips local-pack rich results (stars, hours, address card) from Google and Bing SERPs. The reference-integrity taxon applies: a structurally broken block is indistinguishable from no structured data at all, costing click-through in geo queries where competitors with valid LocalBusiness markup win the visual real estate.

Parse every JSON-LD payload at build time with JSON.parse and assert @context === 'https://schema.org' and a valid @type before injecting the <script> tag. Centralize this in src/components/structured-data.tsx so one validator covers every page, then confirm with Google's Rich Results Test.

const schema = JSON.parse(jsonLdString)
if (schema['@context'] !== 'https://schema.org') throw new Error('bad @context')
if (!schema['@type']) throw new Error('missing @type')