⭐feat: Add Steam account linking with team creation (#274)

## Description
<!-- Briefly describe the purpose and scope of your changes -->


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Introduced a real-time Steam login flow using QR codes and server-sent
events (SSE) for team creation and authentication.
- Added Steam account and friend management, including secure credential
storage and friend list synchronization.
- Integrated Steam login endpoints into the API, enabling QR code-based
login and automated team setup.

- **Improvements**
- Enhanced data security by implementing encrypted storage for sensitive
tokens.
- Updated database schema to support Steam accounts, teams, memberships,
and social connections.
- Refined type definitions and consolidated account-related information
for improved consistency.

- **Bug Fixes**
  - Fixed trade ban status representation for Steam accounts.

- **Chores**
- Removed legacy C# Steam authentication service and related
configuration files.
  - Updated and cleaned up package dependencies and development tooling.
  - Streamlined type declaration files and resource definitions.

- **Style**
- Redesigned the team creation page UI with a modern, animated QR code
login interface.

- **Documentation**
  - Updated OpenAPI documentation for new Steam login endpoints.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/functions/package.json

@@ -4,7 +4,8 @@
   "type": "module",
   "private": true,
   "devDependencies": {
-    "@types/bun": "latest"
+    "@types/bun": "latest",
+    "@types/steamcommunity": "^3.43.8"
   },
   "scripts": {
     "dev:auth": "bun run --watch ./src/auth/index.ts",
@@ -15,9 +16,12 @@
   },
   "dependencies": {
     "@actor-core/bun": "^0.8.0",
-    "@nestri/core":"workspace:",
+    "@nestri/core": "workspace:",
     "actor-core": "^0.8.0",
     "hono": "^4.7.8",
-    "hono-openapi": "^0.4.8"
+    "hono-openapi": "^0.4.8",
+    "steam-session": "*",
+    "steamcommunity": "^3.48.6",
+    "steamid": "^2.1.0"
   }
 }