[Tool] Add Customer Support category

[Surfrrosa]

What's Missing

No Customer Support / Help Desk category. Comes up once founders hit ~50 paying customers.

Tools to Research and Add

• Crisp -- Free for 2 seats, live chat + shared inbox. Popular with indie hackers.
• Plain -- Designed for developer tools and technical products.
• Intercom -- The graduation path. Expensive but feature-complete.
• Just email -- Honestly the right answer until ~100 customers. Worth documenting this as a "tool."

What to Do

1. Create a YAML file for each tool in data/tools/ following the YAML schema
2. Add a collapsible "Customer Support" section to the Tool Directory in README.md
3. Verify all pricing data and include last_verified dates

This is a great first contribution -- each tool file is self-contained and follows a clear template.

[Surfrrosa]

Deprioritized after 3 months with no community PRs. The good-first-issue framing didn't produce contributions, and these are inflating the open-issue count. If any of these categories becomes a self-build priority, will refile under that framing (File Storage / CDN is the most likely candidate — Cloudflare R2 is the strongest single addition for solo founders in 2026).