Added skills, shortcuts, and bugifixes++

oAI/Models/Skill.swift

@@ -0,0 +1,32 @@
+//
+//  Shortcut.swift
+//  oAI
+//
+//  User-defined slash command templates (prompt shortcuts/macros)
+//
+
+import Foundation
+
+struct Shortcut: Codable, Identifiable {
+    var id: UUID
+    var command: String      // e.g. "/summarize" (always starts with /)
+    var description: String  // shown in dropdown
+    var template: String     // prompt text, may contain {{input}}
+    var createdAt: Date
+    var updatedAt: Date
+
+    init(id: UUID = UUID(), command: String, description: String, template: String,
+         createdAt: Date = Date(), updatedAt: Date = Date()) {
+        self.id = id
+        self.command = command
+        self.description = description
+        self.template = template
+        self.createdAt = createdAt
+        self.updatedAt = updatedAt
+    }
+
+    /// True when the template uses {{input}} and needs the user to provide text
+    var needsInput: Bool {
+        template.contains("{{input}}")
+    }
+}