feat: Add uv Docker, Postgres, and company linking

Introduces uv-based Docker workflow with non-root runtime, cached installs, and uv-run for web and Celery. Updates docker-compose to Postgres + Redis, loads .env, and removes source bind mount for reproducible builds.

Switches settings to use Postgres when env is present with SQLite fallback; broadens allowed hosts for containerized development. Adds psycopg2-binary and updates sample env for Redis in Docker.

Adds company scoping to external data models and links sessions during ingestion; provides management commands to seed a Jumbo company/users and sync external chat data into the dashboard.

Includes .dockerignore, TypeScript config and typings, and minor template/docs tweaks.

Requires database migration.

dashboard_project/data_integration/utils.py

@@ -144,6 +144,7 @@ def fetch_and_store_chat_data(source_id=None):
             session, created = ChatSession.objects.update_or_create(
                 session_id=data["session_id"],
                 defaults={
+                    "company": source.company,  # Link to the company from the data source
                     "start_time": start_time,
                     "end_time": end_time,
                     "ip_address": data.get("ip_address"),