Fix PostHog init race condition — remove __loaded guard

posthog.capture() queues events automatically before init completes,
so checking __loaded blocked the first pageview from being sent.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/posthog.ts

@@ -1,13 +1,2 @@
 import posthog from 'posthog-js'
-
-export function initPostHog() {
-  if (typeof window !== 'undefined' && !posthog.__loaded) {
-    posthog.init('phc_BHgg9S7CQqVShe7EMCdi86PxA49qcNaTsR9Nn5EGxRCT', {
-      api_host: 'https://analytics.hyggecraftery.com',
-      capture_pageview: false,
-      persistence: 'localStorage',
-    })
-  }
-}
-
 export { posthog }