Add project wiki documentation

[Copilot]

Creates comprehensive wiki documentation in docs/wiki/ for the Agent Smith CLI.

Pages Added

• Home.md — Landing page with project overview and quick links
• Installation.md — Installation methods, prerequisites, troubleshooting
• Quick-Start.md — First assimilation walkthrough
• Commands.md — CLI reference (assimilate, search, validate)
• Configuration.md — Asset schemas (SKILL.md, agent.yaml, hooks)
• Architecture.md — Technical overview with ASCII diagrams
• Troubleshooting.md — Common issues, error messages, FAQ
• _Sidebar.md — Navigation for GitHub wiki

Structure

docs/wiki/
├── Home.md
├── Installation.md
├── Quick-Start.md
├── Commands.md
├── Configuration.md
├── Architecture.md
├── Troubleshooting.md
└── _Sidebar.md

Wiki pages use [[Page Name]] syntax for cross-references, compatible with GitHub wiki rendering.

Original prompt

update project wiki

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.