Initial commit: Conjuga Spanish conjugation app

Includes SwiftData dual-store architecture (local reference + CloudKit user data),
JSON-based data seeding, 20 tense guides, 20 grammar notes, SRS review system,
course vocabulary, and widget support.

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

Conjuga/ConjugaWidget/NewWordIntent.swift

@@ -0,0 +1,15 @@
+import AppIntents
+import WidgetKit
+
+struct NewWordIntent: AppIntent {
+    static let title: LocalizedStringResource = "New Word"
+    static let description: IntentDescription = "Show a different word of the day"
+
+    func perform() async throws -> some IntentResult {
+        let shared = UserDefaults(suiteName: "group.com.conjuga.app")
+        let current = shared?.integer(forKey: "wordOffset") ?? 0
+        shared?.set(current + 1, forKey: "wordOffset")
+        WidgetCenter.shared.reloadAllTimelines()
+        return .result()
+    }
+}