feat(companies): add company detail page (#14054)

db/migrate/20260422133000_add_additional_attributes_to_companies.rb

@@ -0,0 +1,9 @@
+class AddAdditionalAttributesToCompanies < ActiveRecord::Migration[7.1]
+  def change
+    change_table :companies, bulk: true do |t|
+      t.jsonb :additional_attributes, default: {}
+      t.jsonb :custom_attributes, default: {}
+      t.datetime :last_activity_at, precision: nil
+    end
+  end
+end

db/schema.rb

@@ -612,6 +612,9 @@ ActiveRecord::Schema[7.1].define(version: 2026_04_30_114500) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.integer "contacts_count"
+    t.jsonb "additional_attributes", default: {}
+    t.jsonb "custom_attributes", default: {}
+    t.datetime "last_activity_at", precision: nil
     t.index ["account_id", "domain"], name: "index_companies_on_account_and_domain", unique: true, where: "(domain IS NOT NULL)"
     t.index ["account_id"], name: "index_companies_on_account_id"
     t.index ["name", "account_id"], name: "index_companies_on_name_and_account_id"