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>

docker-compose.yml

@@ -239,6 +239,21 @@ services:
     profiles:
       - ops
 
+  # Paperless-NGX MCP - Document management
+  # NOTE: This is a stdio-based MCP server, run on-demand by Crush via docker run
+  paperless-mcp:
+    image: kneldevstack-aimiddleware-paperless-mcp
+    build:
+      context: ./vendor/paperless-mcp
+      dockerfile: ../../dockerfiles/paperless-mcp/Dockerfile
+    container_name: kneldevstack-aimiddleware-paperless-mcp
+    restart: "no"
+    environment:
+      - PAPERLESS_URL=${PAPERLESS_URL}
+      - PAPERLESS_TOKEN=${PAPERLESS_TOKEN}
+    profiles:
+      - ops
+
   # WordPress MCP Adapter
   wordpress-mcp:
     image: kneldevstack-aimiddleware-wordpress-mcp
@@ -546,7 +561,7 @@ services:
       - dev
 
   # ==========================================
-  # Financial & Budgeting (1 server)
+  # Financial & Budgeting (2 servers)
   # ==========================================
 
   # Actual Budget MCP - Budget management
@@ -565,6 +580,22 @@ services:
     profiles:
       - ops
 
+  # Firefly III MCP - Personal finance manager
+  # NOTE: This is a stdio-based MCP server, run on-demand by Crush via docker run
+  firefly-iii-mcp:
+    image: kneldevstack-aimiddleware-firefly-iii-mcp
+    build:
+      context: .
+      dockerfile: dockerfiles/firefly-iii-mcp/Dockerfile
+    container_name: kneldevstack-aimiddleware-firefly-iii-mcp
+    restart: "no"
+    environment:
+      - FIREFLY_III_BASE_URL=${FIREFLY_III_BASE_URL}
+      - FIREFLY_III_PAT=${FIREFLY_III_PAT}
+      - FIREFLY_III_PRESET=${FIREFLY_III_PRESET:-default}
+    profiles:
+      - ops
+
   # ==========================================
   # System Monitoring (1 server)
   # ==========================================