docs(phase-15): complete forums, collaboration, log aggregators

.planning/STATE.md

@@ -4,7 +4,7 @@ milestone: v1.0
 milestone_name: milestone
 status: executing
 stopped_at: Completed 15-03-PLAN.md
-last_updated: "2026-04-06T13:32:52.614Z"
+last_updated: "2026-04-06T13:37:48.053Z"
 last_activity: 2026-04-06
 progress:
   total_phases: 18
@@ -25,7 +25,7 @@ See: .planning/PROJECT.md (updated 2026-04-04)
 
 ## Current Position
 
-Phase: 15
+Phase: 16
 Plan: Not started
 Status: Ready to execute
 Last activity: 2026-04-06