docs: add Task #55 - Discord Permanent Invite Link Setup

Added new HIGH priority task for creating permanent Discord invite link
needed for Ghost website launch.

Task details:
- 15-30 minute task
- Create never-expiring Discord invite
- Update Ghost homepage CTA button from /subscribe to Discord
- Document link in infrastructure manifest

Currently Ghost homepage points to /subscribe as temporary measure
until Discord invite is ready.

Related to Task #52 (Ghost CMS Homepage implementation in progress).

Signed-off-by: The Chronicler <claude@firefrostgaming.com>

docs/core/tasks.md

@@ -1346,3 +1346,35 @@ Research and evaluate other games for Firefrost Gaming expansion beyond Minecraf
 - Create game-specific onboarding documentation
 
 ---
+
+### 55. Discord Permanent Invite Link Setup
+**Time:** 15-30 minutes  
+**Status:** READY  
+**Priority:** HIGH - Needed for website launch  
+**Documentation:** TBD
+
+Create a permanent Discord invite link for use on the Ghost website and all public-facing materials.
+
+**Steps:**
+1. Open Discord server settings
+2. Go to Invites → Create Invite
+3. Set "Expire After" to Never
+4. Set "Max Uses" to No Limit
+5. Copy permanent invite URL
+6. Update Ghost homepage CTA button (currently points to /subscribe)
+7. Update any other locations referencing Discord
+8. Document the permanent link in infrastructure manifest
+
+**Deliverables:**
+- Permanent Discord invite link (discord.gg/[code])
+- Ghost homepage updated with Discord button
+- Link documented in ops manual
+
+**Dependencies:** Discord server must be set up and configured
+
+**Next Steps After Completion:**
+- Update Ghost homepage `/subscribe` button to Discord link
+- Change button text back to "Join Discord Now"
+- Change button gradient back to Discord blue (#5865F2)
+
+---