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/clearbit.md

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+# Clearbit (HubSpot Breeze Intelligence)
+
+Company and person data enrichment API for converting leads with 100+ firmographic and technographic attributes.
+
+## Capabilities
+
+| Integration | Available | Notes |
+|-------------|-----------|-------|
+| API | ✓ | Person, Company, Combined Enrichment, Reveal, Name to Domain, Prospector |
+| MCP | - | Not available |
+| CLI | ✓ | [clearbit.js](../clis/clearbit.js) |
+| SDK | ✓ | Node, Ruby, Python, PHP |
+
+## Authentication
+
+- **Type**: Bearer Token (or Basic Auth with API key as username)
+- **Header**: `Authorization: Bearer {api_key}`
+- **Get key**: https://dashboard.clearbit.com/api
+
+## Common Agent Operations
+
+### Person Enrichment (by email)
+
+```bash
+GET https://person.clearbit.com/v2/people/find?email=alex@clearbit.com
+```
+
+Returns 100+ attributes: name, title, company, location, social profiles, employment history.
+
+### Company Enrichment (by domain)
+
+```bash
+GET https://company.clearbit.com/v2/companies/find?domain=clearbit.com
+```
+
+Returns firmographics: industry, size, revenue, tech stack, location, funding.
+
+### Combined Enrichment (person + company)
+
+```bash
+GET https://person.clearbit.com/v2/combined/find?email=alex@clearbit.com
+```
+
+Returns both person and company data in a single request.
+
+### Reveal (IP to company)
+
+```bash
+GET https://reveal.clearbit.com/v1/companies/find?ip=104.132.0.0
+```
+
+Identifies the company behind a website visitor by IP address.
+
+### Name to Domain
+
+```bash
+GET https://company.clearbit.com/v1/domains/find?name=Clearbit
+```
+
+Converts a company name to its domain.
+
+### Prospector (find employees)
+
+```bash
+GET https://prospector.clearbit.com/v1/people/search?domain=clearbit.com&role=sales&seniority=executive
+```
+
+Finds employees at a company filtered by role, seniority, title.
+
+## API Pattern
+
+Clearbit uses separate subdomains per API:
+- `person.clearbit.com` - Person data
+- `company.clearbit.com` - Company data, Name to Domain
+- `person-stream.clearbit.com` - Streaming person lookup (blocking, up to 60s)
+- `company-stream.clearbit.com` - Streaming company lookup (blocking, up to 60s)
+- `reveal.clearbit.com` - IP to company
+- `prospector.clearbit.com` - Employee search
+
+Standard endpoints return `202 Accepted` if data is being processed (use webhooks). Stream endpoints block until data is ready.
+
+## Key Metrics
+
+### Person Attributes
+- `name.fullName` - Full name
+- `title` - Job title
+- `role` - Job role (sales, engineering, etc.)
+- `seniority` - Seniority level
+- `employment.name` - Company name
+- `linkedin.handle` - LinkedIn profile
+
+### Company Attributes
+- `name` - Company name
+- `domain` - Website domain
+- `category.industry` - Industry
+- `metrics.employees` - Employee count
+- `metrics.estimatedAnnualRevenue` - Revenue range
+- `tech` - Technology stack array
+- `metrics.raised` - Total funding raised
+
+## Parameters
+
+### Person Enrichment
+- `email` (required) - Email address to look up
+- `webhook_url` - URL for async results
+- `subscribe` - Subscribe to future changes
+
+### Company Enrichment
+- `domain` (required) - Company domain to look up
+- `webhook_url` - URL for async results
+
+### Prospector
+- `domain` (required) - Company domain
+- `role` - Job role filter (sales, engineering, marketing, etc.)
+- `seniority` - Seniority filter (executive, director, manager, etc.)
+- `title` - Exact title filter
+- `page` - Page number (default: 1)
+- `page_size` - Results per page (default: 5, max: 20)
+
+## When to Use
+
+- Lead scoring and qualification based on firmographic data
+- Enriching CRM contacts with company and person data
+- De-anonymizing website visitors with Reveal
+- Building prospect lists with Prospector
+- Personalizing marketing based on company attributes
+- Routing leads based on company size, industry, or tech stack
+
+## Rate Limits
+
+- Enrichment: 600 requests/minute
+- Prospector: 100 requests/minute
+- Reveal: 600 requests/minute
+- Responses include `X-RateLimit-Limit` and `X-RateLimit-Remaining` headers
+
+## Relevant Skills
+
+- lead-scoring
+- personalization
+- abm-strategy
+- lead-enrichment
+- competitor-alternatives