refactor: rename aris to aelis (#59)

Rename all references across the codebase: package names,
imports, source IDs, directory names, docs, and configs.

Co-authored-by: Ona <no-reply@ona.com>

packages/aelis-source-google-calendar/src/calendar-context.ts

@@ -0,0 +1,13 @@
+import type { ContextKey } from "@aelis/core"
+
+import { contextKey } from "@aelis/core"
+
+export interface NextEvent {
+	title: string
+	startTime: Date
+	endTime: Date
+	minutesUntilStart: number
+	location: string | null
+}
+
+export const NextEventKey: ContextKey<NextEvent> = contextKey("aelis.google-calendar", "nextEvent")