chore: import upstream snapshot with attribution

apps/sim/lib/integrations/index.ts

@@ -0,0 +1,79 @@
+/**
+ * Canonical entry point for everything integrations-related. Landing
+ * `/integrations`, workspace integrations, and the sitemap all import from
+ * here so the data shape and helpers stay in lockstep.
+ *
+ * `INTEGRATIONS` is the serialized projection of `BlockConfig` written by
+ * `scripts/generate-docs.ts` whenever a block changes.
+ *
+ * `POPULAR_WORKFLOWS` is derived from each block's `*BlockMeta` export (see
+ * `apps/sim/blocks/registry.ts`, which now hosts both the execution
+ * `BlockConfig` lookups and the presentation `BlockMeta` lookups). Block
+ * files are the source of truth for both surfaces.
+ */
+
+import { stripVersionSuffix } from '@sim/utils/string'
+import integrationsJson from '@/lib/integrations/integrations.json'
+import type { Integration } from '@/lib/integrations/types'
+import { getAllBlockMeta } from '@/blocks/registry'
+
+/** All integrations surfaced in the catalog, ordered by `scripts/generate-docs.ts`. */
+export const INTEGRATIONS: readonly Integration[] =
+  integrationsJson.integrations as readonly Integration[]
+
+/**
+ * ISO date of the last real catalog change, stamped by `scripts/generate-docs.ts`.
+ * Drives sitemap `lastModified`, JSON-LD `dateModified`, and the visible
+ * last-updated line on integration pages.
+ */
+export const INTEGRATIONS_UPDATED_AT: string = integrationsJson.updatedAt
+
+/** A curated `from → to` block-pair workflow surfaced on the landing page. */
+export interface PopularWorkflow {
+  /** Integration display name (matches `Integration.name`). */
+  from: string
+  /** Integration display name. */
+  to: string
+  headline: string
+  description: string
+}
+
+const TYPE_TO_NAME = new Map<string, string>()
+for (const integration of INTEGRATIONS) {
+  TYPE_TO_NAME.set(integration.type, integration.name)
+  TYPE_TO_NAME.set(stripVersionSuffix(integration.type), integration.name)
+}
+
+/**
+ * Curated popular workflow pairs (templates flagged `featured: true` that
+ * reference at least one other integration). Derived from per-block meta —
+ * each entry's `from` is the owner block, `to` is the first
+ * `alsoIntegrations` entry, and `headline`/`description` come from the
+ * template title and prompt.
+ */
+export const POPULAR_WORKFLOWS: readonly PopularWorkflow[] = (() => {
+  const pairs: PopularWorkflow[] = []
+  for (const [ownerType, meta] of Object.entries(getAllBlockMeta())) {
+    for (const template of meta.templates ?? []) {
+      if (!template.featured) continue
+      const toType = template.alsoIntegrations?.[0]
+      if (!toType) continue
+      const from = TYPE_TO_NAME.get(ownerType) ?? TYPE_TO_NAME.get(stripVersionSuffix(ownerType))
+      const to = TYPE_TO_NAME.get(toType) ?? TYPE_TO_NAME.get(stripVersionSuffix(toType))
+      if (!from || !to) continue
+      pairs.push({ from, to, headline: template.title, description: template.prompt })
+    }
+  }
+  return pairs
+})()
+
+export { blockTypeToIconMap } from '@/lib/integrations/icon-mapping'
+export {
+  type OAuthServiceMatch,
+  resolveOAuthServiceForIntegration,
+  resolveOAuthServiceForSlug,
+} from '@/lib/integrations/oauth-service'
+export type { AuthType, FAQItem, Integration } from '@/lib/integrations/types'
+export { getAllBlockMeta, getBlockMeta, getTemplatesForBlock } from '@/blocks/registry'
+export type { BlockMeta, BlockTemplate } from '@/blocks/types'
+export { formatIntegrationType } from '@/blocks/types'