chore: init commit

in worker.../repo/GITFOLDER.zip is the .git folder.

worker-toolkit-stocks-in-the-future/repo/app/policies/stock_policy.rb

@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+class StockPolicy < ApplicationPolicy
+  # Show trading-related links (buy/sell/trade) when the user is a student
+  # and has a portfolio (safeguard for nil portfolio) and the stock is not archived
+  # (or if archived, user is holding it) and trading is enabled for their classroom.
+  def show_trading_link?
+    show_holdings? && (!record.archived? || user.holding?(record)) && user.classroom&.trading_enabled?
+  end
+
+  # Show holdings column / counts for students with a portfolio
+  def show_holdings?
+    user.present? && user.student? && portfolio_present?
+  end
+
+  def index?
+    user.present?
+  end
+
+  def show?
+    user.present?
+  end
+
+  def new?
+    create?
+  end
+
+  def create?
+    admin_required?
+  end
+
+  def edit?
+    update?
+  end
+
+  def update?
+    admin_required?
+  end
+
+  def destroy?
+    admin_required?
+  end
+
+  private
+
+  def portfolio_present?
+    # Student must actually have a persisted portfolio. Nil-safe, avoids relying on cached association state.
+    user&.portfolio&.persisted?
+  end
+
+  # Scope to control which stocks are visible in listings
+  class Scope < ApplicationPolicy::Scope
+    def resolve
+      scope.all
+    end
+  end
+end