docs: comprehensive wiki overhaul for v0.38.3
- Updated Home page with all new features (code intelligence, computer use, browser, security supervisor, skills lifecycle)
- Updated _Sidebar with new pages and reorganized sections
- Replaced Changelog with full v0.9.0-v0.38.3 history
- Updated Architecture with all 20+ subsystems (codegraph, computer-use, MQM, channels, triggers, etc.)
- Updated CLI-Reference with all 40+ commands (eval, node, mcp, workflow, triggers, desktop, projects, etc.)
- Updated Configuration with all config sections (security supervisor, computer use, sandbox, MQM, etc.)
- Updated REST-API with 200+ endpoints (codegraph, skills, security, observability, daemons, etc.)
- Updated Security with LLM supervisor and 3-layer access control
- Updated Built-in-Tools with all 43 tools (code intelligence, browser, computer use, data tools, etc.)
- Updated Memory-System with heuristic learning, embedding search, privacy controls
- Updated Agent-Loop with security supervisor integration, pipeline hooks, debug tracing
- Updated Model-Quartermaster with MQM signal engine, strategies, task categorization
- Updated Observability with Prometheus metrics, OTLP, Langfuse, connection testing
- Updated WebSocket-Protocol with audio, file upload, reasoning panel, chunk buffering
- Updated Dashboard with custom HTML widgets, server info, daemon status
- Updated Pipeline-Hooks with all 10 built-in hooks and execution model
- Updated Request-Flow with security supervisor and code intelligence flows
- Updated Code-Sandbox with gVisor support, sandbox config, REST API endpoints
- Updated Quick-Start, Security-Policy with v0.38.3 references
- Created Code-Intelligence.md — tree-sitter code analysis, 6 tools, D3.js graph
- Created Computer-Use.md — GUI automation, 15 actions, Xvfb + xdotool, Docker
- Created Browser-Tool.md — Playwright headless automation with security gates
- Created Security-Supervisor.md — 3-layer LLM-based access control architecture
- Created Skills-System.md — lifecycle, health, embedding retrieval, deduplication
- Created Tools-Configuration.md — tool API key management, web search cache, registry