feat: complete delta sync implementation - add allGames, update callers

- Add allRichGames method to DataProvider
- Update TripCreationViewModel.loadGamesForBrowsing to use allGames (removes 90-day limit)
- Update MockCloudKitService sync methods to use new delta sync signatures
- Update MockAppDataProvider with renamed methods and new allGames/allRichGames
- Fix all callers: ScheduleViewModel, TripCreationViewModel, SuggestedTripsGenerator, GameMatcher
- Update CLAUDE.md documentation with new method names

This completes the delta sync implementation:
- CloudKit sync now uses modificationDate for proper delta sync
- First sync fetches ALL data, subsequent syncs only fetch modified records
- "By Games" mode now shows all available games (not just 90 days)
- All data types (stadiums, teams, games) use consistent delta sync pattern

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

SportsTime/Core/Services/DataProvider.swift

@@ -197,6 +197,20 @@ final class AppDataProvider: ObservableObject {
         }
     }
 
+    /// Get all games with full team and stadium data (no date filtering)
+    func allRichGames(for sports: Set<Sport>) async throws -> [RichGame] {
+        let games = try await allGames(for: sports)
+
+        return games.compactMap { game in
+            guard let homeTeam = teamsById[game.homeTeamId],
+                  let awayTeam = teamsById[game.awayTeamId],
+                  let stadium = stadiumsById[game.stadiumId] else {
+                return nil
+            }
+            return RichGame(game: game, homeTeam: homeTeam, awayTeam: awayTeam, stadium: stadium)
+        }
+    }
+
     func richGame(from game: Game) -> RichGame? {
         guard let homeTeam = teamsById[game.homeTeamId],
               let awayTeam = teamsById[game.awayTeamId],

SportsTime/Core/Services/GameMatcher.swift

@@ -398,7 +398,7 @@ final class GameMatcher {
         let sports: Set<Sport> = sport != nil ? [sport!] : Set(Sport.allCases)
 
         do {
-            let allGames = try await dataProvider.fetchGames(sports: sports, startDate: startDate, endDate: endDate)
+            let allGames = try await dataProvider.filterGames(sports: sports, startDate: startDate, endDate: endDate)
 
             // Filter by stadium
             let games = allGames.filter { $0.stadiumId == stadium.id }

SportsTime/Core/Services/SuggestedTripsGenerator.swift

@@ -104,9 +104,9 @@ final class SuggestedTripsGenerator {
         }
 
         do {
-            // Fetch all games in the window
+            // Filter all games in the window
             let allSports = Set(Sport.supported)
-            let games = try await dataProvider.fetchGames(
+            let games = try await dataProvider.filterGames(
                 sports: allSports,
                 startDate: startDate,
                 endDate: endDate

SportsTime/Features/Schedule/ViewModels/ScheduleViewModel.swift

@@ -95,7 +95,7 @@ final class ScheduleViewModel {
                 return
             }
 
-            games = try await dataProvider.fetchRichGames(
+            games = try await dataProvider.filterRichGames(
                 sports: selectedSports,
                 startDate: startDate,
                 endDate: endDate

SportsTime/Features/Trip/ViewModels/TripCreationViewModel.swift

@@ -260,8 +260,8 @@ final class TripCreationViewModel {
                 stadiums[stadium.id] = stadium
             }
 
-            // Fetch games
-            games = try await dataProvider.fetchGames(
+            // Filter games within date range
+            games = try await dataProvider.filterGames(
                 sports: selectedSports,
                 startDate: startDate,
                 endDate: endDate
@@ -488,13 +488,8 @@ final class TripCreationViewModel {
                 stadiums[stadium.id] = stadium
             }
 
-            // Fetch games for next 90 days for browsing
-            let browseEndDate = Calendar.current.date(byAdding: .day, value: 90, to: Date()) ?? endDate
-            games = try await dataProvider.fetchGames(
-                sports: selectedSports,
-                startDate: Date(),
-                endDate: browseEndDate
-            )
+            // Fetch all games for browsing (no date filter)
+            games = try await dataProvider.allGames(for: selectedSports)
 
             // Build rich games for display
             availableGames = games.compactMap { game -> RichGame? in