feat: add marketplace dependency and update project config

- Add gitea-mcp-server git dependency from marketplace
- Update version to 0.2.0
- Update entry point to server_http:main
- Add MCP and Caddy environment variables to .env.example
- Update uvicorn and starlette versions
- Add pyjwt for authentication
- Regenerate requirements.txt with all dependencies

Closes #22

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

requirements.txt

@@ -1,11 +1,17 @@
-# HTTP Transport Wrapper Dependencies
+# THE MARKETPLACE PACKAGE — this is the whole point of this repo
+gitea-mcp-server @ git+https://gitea.hotserv.cloud/personal-projects/leo-claude-mktplace.git#subdirectory=mcp-servers/gitea
+
+# MCP SDK
 mcp>=0.9.0
-uvicorn>=0.27.0
-starlette>=0.36.0
+
+# HTTP server
+uvicorn>=0.30.0
+starlette>=0.38.0
+
+# Config (already used by existing modules)
 pydantic>=2.0.0
 pydantic-settings>=2.0.0
 python-dotenv>=1.0.0
 
-# Official Gitea MCP Server (to be wrapped)
-# Install separately - not on PyPI yet
-# See: https://gitea.hotserv.cloud/personal-projects/leo-claude-mktplace
+# Auth
+pyjwt>=2.8.0