feat: add changelog/roadmap types, Sanity queries, and public route whitelist

types/changelog.ts

@@ -0,0 +1,24 @@
+export type ChangelogEntry = {
+  _id: string
+  title: string
+  version: string
+  publishedAt: string
+  tags: string[]
+  body: unknown[]
+}
+
+export type RoadmapItemData = {
+  _id: string
+  title: string
+  description: string
+  status: 'planned' | 'in-progress'
+  order: number
+}
+
+export type Tab = 'whats-new' | 'whats-next' | 'give-feedback'
+
+export type VoteState = {
+  count: number
+  voted: boolean
+  loading: boolean
+}