Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/controllers/sessions_controller.rb

@@ -0,0 +1,43 @@
+class SessionsController < ApplicationController
+  skip_before_action :require_login, only: %i[new create]
+  skip_before_action :set_current_project, only: %i[new create], raise: false
+
+  def new
+    redirect_to after_login_path if logged_in?
+  end
+
+  def create
+    user = User.active.find_by(email: params[:email].to_s.downcase.strip)
+
+    if user&.authenticate(params[:password])
+      login_as(user)
+      redirect_to after_login_path, notice: "Bentornato, #{user.first_name}!"
+    else
+      flash.now[:alert] = "Email o password non validi."
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  def destroy
+    logout
+    redirect_to login_path, notice: "Disconnesso correttamente."
+  end
+
+  private
+
+  def after_login_path
+    projects = if current_user.admin?
+                 Project.active.ordered
+               else
+                 current_user.accessible_projects
+               end
+
+    if projects.one?
+      project_root_path(project_code: projects.first.code)
+    elsif (code = session[:last_project_code]) && projects.exists?(code: code)
+      project_root_path(project_code: code)
+    else
+      root_path
+    end
+  end
+end