Add Google Calendar connector (gcal)

- connector.json: OAuth Google, scope https://www.googleapis.com/auth/calendar
  deliver: file/google_authorized_user → {secrets}/google_creds.json
  mcp_config.env.GOOGLE_CREDS_PATH = {secrets}/google_creds.json
- verify.py: loads creds + API probe (calendarList.list)
- gcal_mcp_server.py: 8 tools (status, list_calendars, list_events,
  get_event, create_event, update_event, delete_event, respond_to_event)
  + push notification polling
- icons: calendar SVG (48px + 96px)
- connectors.json index: gcal entry with auth + sha256
- SKALD.md: tabella connector + stato verify aggiornati

connectors/connectors.json

@@ -56,6 +56,66 @@
         }
       ]
     },
+    {
+      "id": "gcal",
+      "name": "Google Calendar",
+      "type": "mcp_local",
+      "scope": "user",
+      "icon_small": "gcal/icon_sm.svg",
+      "icon_large": "gcal/icon_lg.svg",
+      "user_description": "Read, create, update, delete, and respond to Google Calendar events \u2014 full CRUD with push notifications.",
+      "requires": [
+        "OAUTH",
+        "PYTHON"
+      ],
+      "tags": [
+        "calendar",
+        "mcp",
+        "local",
+        "google"
+      ],
+      "auth": {
+        "type": "oauth2",
+        "provider": "google",
+        "scopes": [
+          "https://www.googleapis.com/auth/calendar"
+        ]
+      },
+      "folder": "gcal",
+      "files": [
+        {
+          "path": "gcal_mcp_server.py",
+          "sha256": "0d1450ae552aba8035e608fa7785487459b9ecf0b05064c15fb5511d93ac92c1",
+          "size": 37210
+        },
+        {
+          "path": "gcal_oauth_setup.py",
+          "sha256": "4abbfcf6af50cc55ca00d283353b417acc6fee7720aa10abb0fbaa0e4aa79900",
+          "size": 3430
+        },
+        {
+          "path": "verify.py",
+          "sha256": "3bbc8c32bd320ed772972798371a39b03c3e52ce1dfd66a1493cda9e78e428e5",
+          "size": 2328
+        },
+        {
+          "path": "icon_sm.svg",
+          "sha256": "477ab05d24b40aaf4209c37e30558878fd0833dfbcfa8648b0ab9b903bd171d3",
+          "size": 473
+        },
+        {
+          "path": "icon_lg.svg",
+          "sha256": "b5daeeaaebba5b6d5ea31fd51bc63887225dee8aa1a42b571e49263f930895a9",
+          "size": 479
+        },
+        {
+          "path": "requirements.txt",
+          "sha256": "3f659cc5e5f0543f132699b06ccf9016ffe9afb40f9df4d110e0445b8d20f63e",
+          "size": 82
+        }
+      ]
+    },
+
     {
       "id": "email",
       "name": "Email (IMAP/SMTP)",