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.

package.json

@@ -1,4 +1,6 @@
 {
+  "name": "livegraphs-django",
+  "private": true,
   "scripts": {
     "format": "prettier --write .; bun format:py",
     "format:check": "prettier --check .; bun format:py -- --check",
@@ -16,11 +18,15 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.56.1",
+    "@types/bun": "latest",
     "markdownlint-cli2": "^0.18.1",
     "oxlint": "^1.25.0",
     "oxlint-tsgolint": "^0.5.0",
     "prettier": "^3.6.2",
     "prettier-plugin-jinja-template": "^2.1.0",
     "prettier-plugin-packagejson": "^2.5.19"
+  },
+  "peerDependencies": {
+    "typescript": "^5"
   }
 }