Test install scripts for all 4 roles on Windows

[abdout]

Context

Install scripts updated to support 4 roles: engineer, business, content, ops.
Each role gets tailored MCP config, commands, and agent index.
macOS tested. Windows needs testing.

Test matrix

Role	Person	Script	MCP Config
engineer	Abdout	install.sh ✅	mcp.json
business	Ali	install.ps1 ❓	mcp-business.json
content	Samia	install.ps1 ❓	mcp-content.json
ops	Sedon	install.ps1 ❓	mcp-ops.json

Verification

After install, each person should:

1. See their role-specific agent index
2. Have correct MCP servers
3. Have role-specific slash commands