Replace zip tool with gzip for single file compression

- Changed tool from multi-file zip to single-file gzip compression
- Replaced JSZip dependency with node:zlib (built-in)
- Updated schema: renamed ZipResourcesInputSchema to GzipResourceInputSchema
- Tool now accepts single file with name and data URI parameters
- Updated tool name from ZIP_RESOURCES to GZIP_RESOURCE
- Updated environment variables (ZIP_* to GZIP_*)
- Removed jszip from package.json dependencies

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/everything/package.json

@@ -25,7 +25,6 @@
     "@modelcontextprotocol/sdk": "^1.18.0",
     "cors": "^2.8.5",
     "express": "^4.21.1",
-    "jszip": "^3.10.1",
     "zod": "^3.23.8",
     "zod-to-json-schema": "^3.23.5"
   },