⭐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/core/package.json

@@ -17,24 +17,22 @@
         "@tsconfig/node20": "^20.1.4",
         "aws-iot-device-sdk-v2": "^1.21.1",
         "aws4fetch": "^1.0.20",
-        "loops": "^3.4.1",
         "mqtt": "^5.10.3",
         "remeda": "^2.21.2",
         "ulid": "^2.3.0",
-        "uuid": "^11.0.3",
         "zod": "^3.24.1",
         "zod-openapi": "^4.2.2"
     },
     "dependencies": {
         "@aws-sdk/client-iot-data-plane": "^3.758.0",
-        "@aws-sdk/client-rds-data": "^3.758.0",
         "@aws-sdk/client-sesv2": "^3.753.0",
-        "@instantdb/admin": "^0.17.7",
         "@openauthjs/openauth": "*",
         "@openauthjs/openevent": "^0.0.27",
         "@polar-sh/sdk": "^0.26.1",
         "drizzle-kit": "^0.30.5",
         "drizzle-orm": "^0.40.0",
-        "postgres": "^3.4.5"
+        "drizzle-zod": "^0.7.1",
+        "postgres": "^3.4.5",
+        "steam-session": "*"
     }
 }