feat: add SolidTime MCP server for time tracking integration

Implements a Model Context Protocol server that exposes SolidTime's
time tracking API as 22+ tools for use with Claude, Cursor, and other
MCP-compatible clients. Supports stdio and HTTP transport modes,
Docker deployment, and self-hosted SolidTime instances.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,9 @@
+node_modules
+dist
+.env
+.env.*
+!.env.example
+.git
+.history
+.mcp.json
+*.md