refactor: Rename package to gitea_mcp_remote and update configuration

Issue #19 - Foundation for Sprint 01: Core Architecture Correction

Changes:
- Renamed package directory: gitea_http_wrapper -> gitea_mcp_remote
- Updated config/settings.py:
  - Made gitea_repo optional (allow None)
  - Added mcp_auth_mode field (default: "optional")
  - Changed HTTP defaults: 0.0.0.0:8080 (was 127.0.0.1:8000)
  - Removed get_gitea_mcp_env() method (no longer needed)
- Updated all import paths throughout codebase
- Updated filtering/filter.py: Changed ValueError to warning when both
  enabled_tools and disabled_tools are specified
- Updated test files with new import paths
- Updated test_filtering.py to test warning instead of ValueError
- Updated pyproject.toml, pytest.ini, and README.md references

All modules preserved - only import paths and configuration updated.

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

src/gitea_mcp_remote/__init__.py

@@ -0,0 +1,17 @@
+"""
+Gitea HTTP MCP Wrapper
+
+This package provides an HTTP transport wrapper around the official Gitea MCP server.
+It handles configuration loading, tool filtering, and HTTP authentication middleware.
+
+Architecture:
+- config/: Configuration loader module
+- middleware/: HTTP authentication middleware
+- filtering/: Tool filtering for Claude Desktop compatibility
+- server.py: Main HTTP MCP server implementation
+"""
+
+from .server import GiteaMCPWrapper, create_app, main
+
+__version__ = "0.1.0"
+__all__ = ["__version__", "GiteaMCPWrapper", "create_app", "main"]