feat: support npx install from git URL

Add prepare script so TypeScript compiles automatically when installed
via git. Update README and MCP client config examples to use
git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git URLs.

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

README.md

@@ -23,6 +23,18 @@ A [Model Context Protocol (MCP)](https://modelcontextprotocol.io) server that wr
 
 ## Installation
 
+### Via npx (no install needed)
+
+```bash
+npx git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git
+```
+
+### Global install
+
+```bash
+npm install -g git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git
+```
+
 ### From source
 
 ```bash
@@ -49,8 +61,8 @@ Add to your `claude_desktop_config.json`:
 {
   "mcpServers": {
     "virtfusion": {
-      "command": "node",
-      "args": ["/path/to/virtfusion-mcp/dist/index.js"],
+      "command": "npx",
+      "args": ["-y", "git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git"],
       "env": {
         "VIRTFUSION_API_URL": "https://cp.example.com/api/v1",
         "VIRTFUSION_API_TOKEN": "your-api-token"
@@ -63,7 +75,7 @@ Add to your `claude_desktop_config.json`:
 ### Claude Code
 
 ```bash
-claude mcp add virtfusion -- node /path/to/virtfusion-mcp/dist/index.js \
+claude mcp add virtfusion -- npx -y git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git \
   -e VIRTFUSION_API_URL=https://cp.example.com/api/v1 \
   -e VIRTFUSION_API_TOKEN=your-api-token
 ```
@@ -76,8 +88,8 @@ Add to your `.vscode/mcp.json`:
 {
   "servers": {
     "virtfusion": {
-      "command": "node",
-      "args": ["/path/to/virtfusion-mcp/dist/index.js"],
+      "command": "npx",
+      "args": ["-y", "git+https://git.ezscale.cloud/EZSCALE/virtfusion-mcp.git"],
       "env": {
         "VIRTFUSION_API_URL": "https://cp.example.com/api/v1",
         "VIRTFUSION_API_TOKEN": "your-api-token"