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>

crush.json

@@ -179,6 +179,16 @@
       "type": "stdio",
       "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-penpot-wrapper.sh",
       "timeout": 60
+    },
+    "firefly-iii": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-firefly-iii-wrapper.sh",
+      "timeout": 60
+    },
+    "paperless": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-paperless-wrapper.sh",
+      "timeout": 60
     }
   }
 }