Update Avidan's bio: engineering background and board seats

[avidan]

Rewrites Avidan's whois bio to lead with his engineering path and highlight four board seats.

• Tells the career chronologically: Excite@Home, CTO of CIM Group, Food Network robotics, then Root (2013, over $500M AUM)
• Adds board seats at Instrumental, Esper, nTop, and Dusty Robotics, each followed by its URL. The terminal auto-links bare URLs via stylePrint, and plain URLs stay clean in the generated homepage block, JSON-LD, and llms files, so this avoids HTML anchors in config
• Degree now reads BS, noting the networking-protocols focus
• Fixes the tinkers → tinkerers typo in groups

npm test passes (138/138).

🤖 Generated with Claude Code

https://claude.ai/code/session_01LNNXKvPr4yac2oFAv9G1jm

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