Update .gitignore and README.md for CODESYS MCP project. Added entries to .gitignore for VSIX files and VS Code settings. Expanded README to include architecture, components, deployment instructions, and details about the Cursor extension.

python_scripting/mcp_codesys_bridge/README.md

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+# CODESYS MCP Bridge (Linux)
+
+This MCP server runs on Linux (where Cursor runs) and forwards tool calls to a Windows VM agent that has access to CODESYS.
+
+## Tools
+
+- `codesys_health`
+- `codesys_submit_job`
+- `codesys_get_job`
+- `create_project`
+- `read_project_inventory`
+- `stage_existing_project`
+- `write_pou`
+- `build_project`
+- `download_to_device`
+
+## Environment variables
+
+- `CODESYS_AGENT_URL` (default: `http://127.0.0.1:8787`)
+- `CODESYS_AGENT_TOKEN` (required)
+- `CODESYS_AGENT_REQUEST_TIMEOUT_SEC` (default: `30`)
+
+## Run locally
+
+```bash
+cd mcp_codesys_bridge
+python3 -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+export CODESYS_AGENT_URL="http://<windows-vm-ip>:8787"
+export CODESYS_AGENT_TOKEN="<shared-secret-token>"
+python server.py
+```
+
+## Cursor MCP config example
+
+```json
+{
+  "mcpServers": {
+    "codesys-bridge": {
+      "command": "python",
+      "args": ["/absolute/path/to/mcp_codesys_bridge/server.py"],
+      "env": {
+        "CODESYS_AGENT_URL": "http://<windows-vm-ip>:8787",
+        "CODESYS_AGENT_TOKEN": "<shared-secret-token>",
+        "CODESYS_AGENT_REQUEST_TIMEOUT_SEC": "30"
+      }
+    }
+  }
+}
+```