docs: bootstrap wiki with Home page

Home.md

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+# Chrysopedia
+
+**Knowledge base for music production techniques**, extracted from video content via an LLM-powered pipeline.
+
+Producers can search for specific techniques and find timestamped key moments, signal chains, and synthesized study guides — all derived from creator videos.
+
+## Quick Links
+
+- [[Architecture]] — System architecture, Docker services, network topology
+- [[Data-Model]] — SQLAlchemy models, relationships, enums
+- [[API-Surface]] — All 41 API endpoints grouped by domain
+- [[Frontend]] — Routes, components, hooks, CSS architecture
+- [[Pipeline]] — 6-stage LLM extraction pipeline, prompt system
+- [[Deployment]] — Docker Compose setup, rebuild commands
+- [[Development-Guide]] — Local dev setup, common gotchas
+- [[Decisions]] — Architectural decisions register (D001–D035)
+
+## Current Scale
+
+- **83** technique pages
+- **25–26** creators
+- **200** source videos
+- **7** topic categories
+
+## Stack
+
+| Layer | Technology |
+|-------|-----------|
+| Frontend | React 18 + TypeScript + Vite |
+| Backend | FastAPI + Celery + SQLAlchemy (async) |
+| Database | PostgreSQL 16 |
+| Cache/Broker | Redis 7 |
+| Vector Store | Qdrant 1.13.2 |
+| Embeddings | Ollama (nomic-embed-text) |
+| LLM | OpenAI-compatible API (DGX Sparks Qwen primary, local Ollama fallback) |
+| Deployment | Docker Compose on ub01, nginx reverse proxy on nuc01 |
+
+---
+
+*Last updated: 2026-04-03 — M018/S02 initial bootstrap*