feat: Add Telegram chat ID to ShopModel for automatic invoice sending

chore: Update Dockerfile to install WeasyPrint dependencies

feat: Enhance ShopOrderModelAdmin with invoice download buttons

feat: Implement invoice generation for OrderModel and ShopOrderModel

feat: Send invoice to shop's Telegram chat upon ShopOrderModel creation

feat: Create Celery task to send shop order invoice via Telegram

feat: Add invoice download endpoints for OrderModel and ShopOrderModel

feat: Implement views for downloading order and shop order invoices

chore: Update requirements.txt to include necessary packages for PDF generation

feat: Create HTML templates for order and shop order invoices

backend/requirements.txt

@@ -11,6 +11,7 @@ billiard==4.2.1
 boto3==1.36.26
 botocore==1.36.26
 branca==0.8.1
+brotli==1.2.0
 celery==5.4.0
 certifi==2024.8.30
 cffi==1.17.1
@@ -22,6 +23,7 @@ click-repl==0.3.0
 colorama==0.4.6
 cron-descriptor==1.4.5
 cryptography==44.0.1
+cssselect2==0.8.0
 defusedxml==0.8.0rc2
 diff-match-patch==20230430
 distro==1.9.0
@@ -51,6 +53,7 @@ et-xmlfile==1.1.0
 factory_boy==3.3.1
 Faker==28.4.1
 folium==0.19.4
+fonttools==4.61.1
 frozenlist==1.4.1
 geoip2==4.8.0
 ghasedak_sms==1.0.3
@@ -95,7 +98,9 @@ pycparser==2.22
 pycryptodome==3.20.0
 pydantic==2.10.6
 pydantic_core==2.27.2
+pydyf==0.12.1
 PyJWT==2.10.1
+pyphen==0.17.2
 pyTelegramBotAPI==4.23.0
 python-crontab==3.2.0
 python-dateutil==2.9.0.post0
@@ -125,6 +130,8 @@ sqlparse==0.5.1
 tablib==3.5.0
 telebot==0.0.5
 text-unidecode==1.3
+tinycss2==1.5.1
+tinyhtml5==2.0.0
 tqdm==4.67.1
 typing_extensions==4.12.2
 tzdata==2024.1
@@ -132,9 +139,12 @@ uritemplate==4.1.1
 urllib3==2.2.3
 vine==5.1.0
 wcwidth==0.2.13
+weasyprint==67.0
+webencodings==0.5.1
 whitenoise==6.7.0
 xlrd==2.0.1
 xlwt==1.3.0
 xyzservices==2025.1.0
 yarl==1.11.1
 zeep==4.2.1
+zopfli==0.4.0