Add GraphQL Day at FOST 2026 events to /community/events (#2366)

## Summary
- Adds four upcoming GraphQL Day at FOST 2026 conferences to the
community events page
  - **Singapore** — Apr 14-15
  - **NYC** — May 13-14
  - **Melbourne** — Oct 28-29
  - **Paris** — Dec 1-3
- All events link to `/day/2026/<city>` (routes coming via the
`graphql-day` branch)
- Host: FOST & GraphQL Community

![Upcoming events section showing FOST
events](https://files.catbox.moe/jamcil.png)

## Notes
- Event links point to `/day/2026/*` pages which will be added by the
GraphQL Day pages PR (`graphql-day` branch). Until that merges, the
links will 404.
- Amsterdam is omitted as it's still TBC.

Author: hasparus

src/app/(main)/community/events/events.ts

@@ -12,6 +12,24 @@ export interface Event {
 }
 
 export const events: Event[] = [
+  {
+    name: "GraphQL Day at FOST Paris",
+    slug: "graphql-day-fost-paris-2026",
+    location: "Paris",
+    date: "2026-12-01T09:00:00+01:00",
+    eventLink: "/day/2026/paris",
+    host: "FOST & GraphQL Community",
+    hostLink: "https://www.joinfost.io",
+  },
+  {
+    name: "GraphQL Day at FOST Melbourne",
+    slug: "graphql-day-fost-melbourne-2026",
+    location: "Melbourne",
+    date: "2026-10-28T09:00:00+11:00",
+    eventLink: "/day/2026/melbourne",
+    host: "FOST & GraphQL Community",
+    hostLink: "https://www.joinfost.io",
+  },
   {
     name: "WG Day 2026",
     slug: "wg-day-2026",
@@ -20,6 +38,15 @@ export const events: Event[] = [
     eventLink: "/conf/2026/wg-day",
     host: "GraphQL Foundation",
   },
+  {
+    name: "GraphQL Day at FOST NYC",
+    slug: "graphql-day-fost-nyc-2026",
+    location: "New York",
+    date: "2026-05-13T09:00:00-04:00",
+    eventLink: "/day/2026/nyc",
+    host: "FOST & GraphQL Community",
+    hostLink: "https://www.joinfost.io",
+  },
   {
     name: "GraphQLConf 2026",
     slug: "graphql-conf-2026",
@@ -28,6 +55,15 @@ export const events: Event[] = [
     eventLink: "/conf/2026",
     host: "GraphQL Foundation",
   },
+  {
+    name: "GraphQL Day at FOST Singapore",
+    slug: "graphql-day-fost-singapore-2026",
+    location: "Singapore",
+    date: "2026-04-14T09:00:00+08:00",
+    eventLink: "/day/2026/singapore",
+    host: "FOST & GraphQL Community",
+    hostLink: "https://www.joinfost.io",
+  },
   {
     name: "GraphQL Day at APIDays",
     slug: "graphql-day-at-apidays",