feat: Trip Detail screen — real data, Wishlist-quality polish

Adapted from Apple's Wishlist TripDetailView:
- 510pt hero image with .scrollEdgeEffectStyle(.soft)
- Trip stats overlay (glass material + MeshGradient, same pattern)
- Title in .largeTitle toolbar (expanded font)
- .toolbarRole(.editor) for clean back navigation

Content sections with real API data:
- Lodging: hotel name, location, check-in/out dates
- Flights & Transport: route, type icon, flight number
- Places: name, category, visit date
- AI Recommendations: first 500 chars of suggestions
- Empty state when no details added

Models: TripDetail, TripTransportation, TripLodging, TripLocation,
TripNote — matching the /api/trip/{id} response shape

GradientOverlay: MeshGradient mask from Wishlist's GradientView

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ios/Platform/Platform.xcodeproj/project.pbxproj

@@ -23,6 +23,7 @@
 		A10066 /* TripCard.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10066 /* TripCard.swift */; };
 		A10067 /* TripImageView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10067 /* TripImageView.swift */; };
 		A10068 /* TripPlaceholderView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10068 /* TripPlaceholderView.swift */; };
+		A10069 /* TripDetailView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10069 /* TripDetailView.swift */; };
 		A10006 /* LoginView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10006 /* LoginView.swift */; };
 		A10007 /* HomeView.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10007 /* HomeView.swift */; };
 		A10008 /* HomeViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = B10008 /* HomeViewModel.swift */; };
@@ -108,6 +109,7 @@
 		B10066 /* TripCard.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TripCard.swift; sourceTree = "<group>"; };
 		B10067 /* TripImageView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TripImageView.swift; sourceTree = "<group>"; };
 		B10068 /* TripPlaceholderView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TripPlaceholderView.swift; sourceTree = "<group>"; };
+		B10069 /* TripDetailView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TripDetailView.swift; sourceTree = "<group>"; };
 		B10006 /* LoginView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginView.swift; sourceTree = "<group>"; };
 		B10007 /* HomeView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeView.swift; sourceTree = "<group>"; };
 		B10008 /* HomeViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeViewModel.swift; sourceTree = "<group>"; };
@@ -463,6 +465,7 @@
 				B10066 /* TripCard.swift */,
 				B10067 /* TripImageView.swift */,
 				B10068 /* TripPlaceholderView.swift */,
+				B10069 /* TripDetailView.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -594,6 +597,7 @@
 				A10066 /* TripCard.swift in Sources */,
 				A10067 /* TripImageView.swift in Sources */,
 				A10068 /* TripPlaceholderView.swift in Sources */,
+				A10069 /* TripDetailView.swift in Sources */,
 				A10006 /* LoginView.swift in Sources */,
 				A10007 /* HomeView.swift in Sources */,
 				A10008 /* HomeViewModel.swift in Sources */,