feat: add 23 new CLI tools and integration guides

New tools across 13 categories:
- Email/Newsletter: beehiiv, klaviyo, postmark, brevo, activecampaign
- Data Enrichment: clearbit, apollo
- CRO/Testing: hotjar, optimizely
- Analytics: plausible
- Scheduling: calendly, savvycal
- Forms: typeform
- Messaging: intercom
- Social: buffer
- Video: wistia
- Payments: paddle
- Affiliate: partnerstack
- Reviews: trustpilot, g2
- Push: onesignal
- Webinar: demio, livestorm

Each tool includes a zero-dependency CLI and integration guide.
Registry and CLI README updated with all new entries.

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

tools/integrations/hotjar.md

@@ -0,0 +1,147 @@
+# Hotjar
+
+Behavior analytics platform with heatmaps, session recordings, and surveys for understanding user experience.
+
+## Capabilities
+
+| Integration | Available | Notes |
+|-------------|-----------|-------|
+| API | ✓ | Surveys, Responses, Sites, Heatmaps, Recordings |
+| MCP | - | Not available |
+| CLI | ✓ | [hotjar.js](../clis/hotjar.js) |
+| SDK | ✓ | JavaScript tracking snippet, Identify API, Events API |
+
+## Authentication
+
+- **Type**: OAuth 2.0 Client Credentials
+- **Token endpoint**: `POST https://api.hotjar.io/v1/oauth/token`
+- **Header**: `Authorization: Bearer {access_token}`
+- **Get credentials**: Hotjar Dashboard > Integrations > API
+- **Token expiry**: 3600 seconds (1 hour)
+
+### Token Request
+
+```bash
+POST https://api.hotjar.io/v1/oauth/token
+Content-Type: application/x-www-form-urlencoded
+
+grant_type=client_credentials&client_id={client_id}&client_secret={client_secret}
+```
+
+### Token Response
+
+```json
+{
+  "access_token": "<token>",
+  "token_type": "Bearer",
+  "expires_in": 3600
+}
+```
+
+## Common Agent Operations
+
+### List Sites
+
+```bash
+GET https://api.hotjar.io/v1/sites
+
+Authorization: Bearer {access_token}
+```
+
+### List Surveys
+
+```bash
+GET https://api.hotjar.io/v1/sites/{site_id}/surveys
+
+Authorization: Bearer {access_token}
+```
+
+### Get Survey Responses
+
+```bash
+GET https://api.hotjar.io/v1/sites/{site_id}/surveys/{survey_id}/responses?limit=100
+
+Authorization: Bearer {access_token}
+```
+
+Supports cursor-based pagination with `cursor` and `limit` parameters.
+
+### List Heatmaps
+
+```bash
+GET https://api.hotjar.io/v1/sites/{site_id}/heatmaps
+
+Authorization: Bearer {access_token}
+```
+
+### List Recordings
+
+```bash
+GET https://api.hotjar.io/v1/sites/{site_id}/recordings
+
+Authorization: Bearer {access_token}
+```
+
+### List Forms
+
+```bash
+GET https://api.hotjar.io/v1/sites/{site_id}/forms
+
+Authorization: Bearer {access_token}
+```
+
+## Key Metrics
+
+### Survey Response Data
+- `response_id` - Unique response identifier
+- `answers` - Array of question/answer pairs
+- `created_at` - Response timestamp
+- `device_type` - Desktop, mobile, tablet
+
+### Heatmap Data
+- `url` - Page URL
+- `click_count` - Total clicks tracked
+- `visitors` - Unique visitors
+- `created_at` - Heatmap creation date
+
+### Recording Data
+- `recording_id` - Unique recording ID
+- `duration` - Session duration
+- `pages_visited` - Pages in session
+- `device` - Device information
+
+## Parameters
+
+### Survey Responses
+- `limit` - Results per page (default: 100)
+- `cursor` - Pagination cursor from previous response
+- `sort` - Sort order (default: created_at desc)
+
+### Recordings
+- `limit` - Results per page
+- `cursor` - Pagination cursor
+- `date_from` - Start date filter
+- `date_to` - End date filter
+
+## When to Use
+
+- Analyzing user behavior patterns on landing pages
+- Collecting qualitative feedback via on-site surveys
+- Identifying UX issues through session recordings
+- Understanding scroll depth and engagement via heatmaps
+- Validating CRO hypotheses with user behavior data
+- Form abandonment analysis
+
+## Rate Limits
+
+- 3000 requests/minute (50 per second)
+- Rate limited by source IP address
+- Cursor-based pagination for large result sets
+
+## Relevant Skills
+
+- page-cro
+- ab-test-setup
+- analytics-tracking
+- ux-audit
+- landing-page