feat: add firefly-iii-mcp and paperless-mcp MCP servers

- Added firefly-iii-mcp (v1.3.0) for personal finance management
  - Uses npm package @firefly-iii-mcp/local instead of source build
  - Requires FIREFLY_III_BASE_URL and FIREFLY_III_PAT env vars
- Added paperless-mcp (v1.0.0) for document management
  - Requires PAPERLESS_URL and PAPERLESS_TOKEN CLI args
- Created wrapper scripts for Crush integration
- Updated docker-compose.yml with new services
- Updated .env.example with required environment variables
- Added Financial & Budgeting category to README.md

Both servers validated with MCP protocol handshake.

Working MCP servers count: 27

💘 Generated with Crush

Assisted-by: GLM-5 via Crush <crush@charm.land>

mcp-paperless-wrapper.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+# Paperless-NGX MCP wrapper script for Crush
+CONTAINER_NAME="kneldevstack-aimiddleware-paperless-mcp-crush"
+
+# Force remove existing container (suppress output)
+docker rm -f "${CONTAINER_NAME}" >/dev/null 2>&1 || true
+sleep 0.5
+
+# Run container with explicit name and environment variables
+docker run -i --rm \
+  --name "${CONTAINER_NAME}" \
+  -e PAPERLESS_URL="${PAPERLESS_URL:-}" \
+  -e PAPERLESS_TOKEN="${PAPERLESS_TOKEN:-}" \
+  kneldevstack-aimiddleware-paperless-mcp \
+  "${PAPERLESS_URL:-http://localhost:8000}" "${PAPERLESS_TOKEN:-}"