feat: add Bitdefender GravityZone integration module

Adds full GravityZone API integration to ClaudeTools. Key additions:

- api/services/gravityzone_service.py: JSON-RPC client with Basic auth,
  methods for company/endpoint/quarantine/licensing data, and security_sweep
  which paginates all endpoints, enriches with malware/agent status, and
  sorts infected > outdated > clean
- api/schemas/gravityzone.py: Pydantic response models for all endpoints
- api/routers/gravityzone.py: 7 REST endpoints at /api/gravityzone/*,
  JWT-protected, returns 502 on downstream GZ errors
- api/config.py: GRAVITYZONE_API_KEY + GRAVITYZONE_API_BASE_URL settings
- api/main.py: router registered under /api/gravityzone

Vault entry: msp-tools/gravityzone.sops.yaml (partner-level key, 14 modules)
Server .env updated, ticktick router synced, service restarted and verified.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/main.py

@@ -36,6 +36,7 @@ from api.routers import (
     quotes,
     admin_quotes,
     ticktick,
+    gravityzone,
 )
 
 # Import middleware
@@ -133,6 +134,7 @@ app.include_router(admin_quotes.router, prefix="/api/admin/quotes", tags=["Admin
 
 # External integrations
 app.include_router(ticktick.router, prefix="/api/ticktick", tags=["TickTick"])
+app.include_router(gravityzone.router, prefix="/api/gravityzone", tags=["GravityZone"])
 
 
 if __name__ == "__main__":