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/FeelsSubscriptionStoreView.swift

@@ -151,6 +151,10 @@ struct CelestialMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            animateGradient = false
+            animateOrbs = false
+        }
     }
 }
 
@@ -221,6 +225,10 @@ struct GardenMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            bloomPhase = false
+            swayPhase = false
+        }
     }
 }
 
@@ -299,6 +307,11 @@ struct NeonMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            pulsePhase = false
+            glowPhase = false
+            scanlineOffset = 0
+        }
     }
 }
 
@@ -358,6 +371,9 @@ struct MinimalMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            breathe = false
+        }
     }
 }
 
@@ -415,6 +431,9 @@ struct ZenMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            inkFlow = false
+        }
     }
 }
 
@@ -548,6 +567,9 @@ struct MixtapeMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            tapeRotation = false
+        }
     }
 }
 
@@ -612,6 +634,9 @@ struct HeartfeltMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            heartbeat = false
+        }
     }
 }
 
@@ -674,6 +699,9 @@ struct LuxeMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            shimmer = false
+        }
     }
 }
 
@@ -738,6 +766,9 @@ struct ForecastMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            cloudDrift = false
+        }
     }
 }
 
@@ -802,6 +833,9 @@ struct PlayfulMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            bounce = false
+        }
     }
 }
 
@@ -858,6 +892,9 @@ struct JournalMarketingContent: View {
                 showContent = true
             }
         }
+        .onDisappear {
+            pageFlip = false
+        }
     }
 }
 
@@ -1452,6 +1489,9 @@ struct EmotionOrb: View {
                 pulse = true
             }
         }
+        .onDisappear {
+            pulse = false
+        }
     }
 }