Fix memory leaks and add debug tools, remove ControlCenterTip

Memory optimization:
- Add onDisappear cleanup for repeatForever animations in LockScreenView
- Add onDisappear cleanup for animations in FeelsSubscriptionStoreView
- Add onDisappear cleanup in AddMoodHeaderView and PaywallPreviewSettingsView

Debug improvements:
- Add test data and clear data buttons to Settings (debug builds only)

TipKit changes:
- Remove ControlCenterTip (unused)
- Add TipKit-Tips.md documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/Views/SettingsView/PaywallPreviewSettingsView.swift

@@ -386,6 +386,9 @@ struct CelestialMiniPreview: View {
                 animate = true
             }
         }
+        .onDisappear {
+            animate = false
+        }
     }
 
     private var orbColors: [Color] {
@@ -445,6 +448,9 @@ struct GardenMiniPreview: View {
                 bloom = true
             }
         }
+        .onDisappear {
+            bloom = false
+        }
     }
 }
 
@@ -508,6 +514,9 @@ struct NeonMiniPreview: View {
                 pulse = true
             }
         }
+        .onDisappear {
+            pulse = false
+        }
     }
 }
 
@@ -552,6 +561,9 @@ struct MinimalMiniPreview: View {
                 breathe = true
             }
         }
+        .onDisappear {
+            breathe = false
+        }
     }
 }
 
@@ -592,6 +604,9 @@ struct ZenMiniPreview: View {
                 breathe = true
             }
         }
+        .onDisappear {
+            breathe = false
+        }
     }
 }
 
@@ -668,6 +683,9 @@ struct MixtapeMiniPreview: View {
                 spin = true
             }
         }
+        .onDisappear {
+            spin = false
+        }
     }
 }
 
@@ -710,6 +728,9 @@ struct HeartfeltMiniPreview: View {
                 beat = true
             }
         }
+        .onDisappear {
+            beat = false
+        }
     }
 }
 
@@ -756,6 +777,9 @@ struct LuxeMiniPreview: View {
                 shimmer = true
             }
         }
+        .onDisappear {
+            shimmer = false
+        }
     }
 }
 
@@ -801,6 +825,9 @@ struct ForecastMiniPreview: View {
                 drift = true
             }
         }
+        .onDisappear {
+            drift = false
+        }
     }
 }
 
@@ -847,6 +874,9 @@ struct PlayfulMiniPreview: View {
                 bounce = true
             }
         }
+        .onDisappear {
+            bounce = false
+        }
     }
 }