Initial scaffold: Turborepo monorepo + design wiki

Turborepo (pnpm workspaces) with all dependencies pinned to latest
mutually-compatible versions: turbo 2.9, TypeScript 6, Fastify 5,
React 19, Vite 8, better-sqlite3 12 + Drizzle ORM 0.45.

Layout:
- apps/server   Fastify backend (local JWT auth + role guard, /health)
- apps/web      React 19 + Vite 8 operator SPA
- packages/db   Drizzle schema on SQLite/WAL; append-only events + users
- packages/devices  reader/printer/relay adapter interfaces (intent-only relay)
- packages/shared   shared domain types

Architecture constraints from the design wiki are encoded in the scaffold:
append-only hash-chained + signed event log, device-agnostic adapters,
"a barrier is not a door" (relay expresses intent only), fully-local
offline-first auth.

wiki/ is an LLM-maintained Obsidian knowledge base (28 pages) ingested
from the architecture & design notes, with its own maintenance schema.

Verified: pnpm install, full turbo build (5/5), server boots and serves
/health, drizzle-kit generates the initial migration.

wiki/log.md

@@ -0,0 +1,11 @@
+# Wiki Log
+
+Append-only chronological record. Each entry: `## [YYYY-MM-DD] <op> | <subject>`.
+Query with `grep "^## \[" log.md | tail -5`.
+
+## [2026-06-14] ingest | Parking System — Architecture & Design Notes
+First source ingested. Bootstrapped wiki scaffolding (CLAUDE.md schema, index.md,
+overview.md, log.md). Created source summary, 14 entity pages, 9 concept pages, and
+decision records (settled decisions + 6 open questions). Source is a dense design
+doc covering stack, threat model, device architecture, UHPPOTE access control, the
+custom ESP32 controller alternative, readers, and a reference BOM.