Add honeycomb pattern to widgets and fix PostHog anonymous user tracking

- Widget containerBackground now shows honeycomb texture when toggle is enabled
- Change PostHog personProfiles from .never to .always so anonymous sessions
  and unique visitors are properly counted without identifying users

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

iosApp/HoneyDue/HoneyDue.swift

@@ -776,6 +776,11 @@ struct honeyDue: Widget {
                             startPoint: .topLeading,
                             endPoint: .bottomTrailing
                         )
+
+                        // Honeycomb pattern overlay (if enabled)
+                        if HoneycombSetting.isEnabled {
+                            HoneycombTexture(opacity: 0.10)
+                        }
                     }
                 }
         }

iosApp/iosApp/Analytics/AnalyticsManager.swift

@@ -42,8 +42,9 @@ final class AnalyticsManager {
 
         let config = PostHogConfig(apiKey: Self.apiKey, host: Self.host)
 
-        // Anonymous-only — no user identification, events use anonymous IDs
-        config.personProfiles = .never
+        // Anonymous person profiles — no user identification, but PostHog can
+        // count unique visitors and tie sessions to anonymous device IDs
+        config.personProfiles = .always
 
         // Auto-capture
         config.captureElementInteractions = true