docs: rebrand sidebar to Lophiarch
docs: align Wiki with Lophiarch branding
Replace Gemini-only troubleshooting with provider-agnostic guidance
Document provider-neutral credential and data controls
Update AI documentation for provider-agnostic v2.2 architecture
Document provider-agnostic AI architecture for v2.2.0
docs: add _Sidebar wiki page
docs: add Frequently Asked Questions wiki page
docs: add Development and Contributing wiki page
docs: add Troubleshooting wiki page
docs: add Security and Responsible Use wiki page
docs: add Scanner and Tool Integrations wiki page
docs: add Deployment wiki page
docs: add Configuration wiki page
docs: add Architecture Overview wiki page
docs: add Getting Started wiki page
docs: add Home wiki page