Add Google Calendar integration via Supabase Edge Functions

- Create new create-google-meet-event edge function
- Use service account authentication (no OAuth needed)
- Add google_service_account_json field to platform_settings
- Add admin UI for service account JSON configuration
- Include test connection button in Integrasi tab
- Add comprehensive setup documentation
- Keep n8n workflows as alternative option

Features:
- Direct Google Calendar API integration
- JWT authentication with service account
- Auto-create Google Meet links
- No external dependencies needed
- Simple configuration via admin panel

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

n8n-workflows/create-google-meet-event-advanced.json

@@ -0,0 +1,127 @@
+{
+  "name": "Create Google Meet Event - Access Hub (Advanced)",
+  "nodes": [
+    {
+      "parameters": {
+        "httpMethod": "POST",
+        "path": "create-meet",
+        "responseMode": "responseNode",
+        "options": {}
+      },
+      "id": "webhook-trigger",
+      "name": "Webhook",
+      "type": "n8n-nodes-base.webhook",
+      "typeVersion": 1.1,
+      "position": [250, 300],
+      "webhookId": "create-meet-webhook"
+    },
+    {
+      "parameters": {
+        "jsCode": "const items = $input.all();\nconst data = items[0].json;\n\n// Parse date and time\nconst startDate = new Date(`${data.date}T${data.start_time}`);\nconst endDate = new Date(`${data.date}T${data.end_time}`);\n\n// Format for Google Calendar API (ISO 8601 with timezone)\nconst startTime = startDate.toISOString();\nconst endTime = endDate.toISOString();\n\n// Build event data\nconst eventData = {\n  calendarId: data.calendar_id,\n  summary: `Konsultasi: ${data.topic} - ${data.client_name}`,\n  description: `Client: ${data.client_email}\\n\\nNotes: ${data.notes || '-'}\\n\\nSlot ID: ${data.slot_id}\\nBrand: ${data.brand_name || 'Access Hub'}`,\n  start: {\n    dateTime: startTime,\n    timeZone: 'Asia/Jakarta'\n  },\n  end: {\n    dateTime: endTime,\n    timeZone: 'Asia/Jakarta'\n  },\n  attendees: [\n    { email: data.client_email }\n  ],\n  conferenceData: {\n    createRequest: {\n      requestId: data.slot_id,\n      conferenceSolutionKey: { type: 'hangoutsMeet' }\n    }\n  },\n  sendUpdates: 'all',\n  guestsCanInviteOthers: false,\n  guestsCanModify: false,\n  guestsCanSeeOtherGuests: false\n};\n\nreturn [{ json: eventData }];"
+      },
+      "id": "prepare-event-data",
+      "name": "Prepare Event Data",
+      "type": "n8n-nodes-base.code",
+      "typeVersion": 2,
+      "position": [470, 300]
+    },
+    {
+      "parameters": {
+        "authentication": "serviceAccount",
+        "resource": "calendar",
+        "operation": "insert",
+        "calendarId": "={{ $json.calendarId }}",
+        "body": "={{ { summary: $json.summary, description: $json.description, start: $json.start, end: $json.end, attendees: $json.attendees, conferenceData: $json.conferenceData, sendUpdates: $json.sendUpdates, guestsCanInviteOthers: $json.guestsCanInviteOthers, guestsCanModify: $json.guestsCanModify, guestsCanSeeOtherGuests: $json.guestsCanSeeOtherGuests } }}",
+        "options": {
+          "conferenceDataVersion": 1
+        }
+      },
+      "id": "google-calendar-api",
+      "name": "Google Calendar API",
+      "type": "n8n-nodes-base.googleApi",
+      "typeVersion": 1,
+      "position": [690, 300],
+      "credentials": {
+        "googleApi": {
+          "id": "REPLACE_WITH_YOUR_CREDENTIAL_ID",
+          "name": "Google Calendar API (Service Account)"
+        }
+      }
+    },
+    {
+      "parameters": {
+        "respondWith": "json",
+        "responseBody": "={{ { \"meet_link\": $json.hangoutLink, \"event_id\": $json.id, \"html_link\": $json.htmlLink } }}"
+      },
+      "id": "respond-to-webhook",
+      "name": "Respond to Webhook",
+      "type": "n8n-nodes-base.respondToWebhook",
+      "typeVersion": 1.1,
+      "position": [910, 300]
+    },
+    {
+      "parameters": {
+        "assignments": {
+          "assignments": [
+            {
+              "id": "error-handler",
+              "name": "error",
+              "value": "={{ $json.error?.message || 'Unknown error' }}",
+              "type": "string"
+            }
+          ]
+        },
+        "options": {}
+      },
+      "id": "error-handler",
+      "name": "Error Handler",
+      "type": "n8n-nodes-base.set",
+      "typeVersion": 3.4,
+      "position": [910, 480]
+    }
+  ],
+  "connections": {
+    "Webhook": {
+      "main": [
+        [
+          {
+            "node": "Prepare Event Data",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Prepare Event Data": {
+      "main": [
+        [
+          {
+            "node": "Google Calendar API",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Google Calendar API": {
+      "main": [
+        [
+          {
+            "node": "Respond to Webhook",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  },
+  "pinData": {},
+  "settings": {
+    "executionOrder": "v1"
+  },
+  "staticData": null,
+  "tags": ["access-hub", "calendar", "meet"],
+  "triggerCount": 1,
+  "updatedAt": "2025-12-23T00:00:00.000Z",
+  "versionId": "1"
+}