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/entities/bom.md

@@ -0,0 +1,28 @@
+---
+type: entity
+tags: [parking, hardware, bom, reference]
+sources: [parking-system-architecture]
+updated: 2026-06-14
+---
+
+# Reference BOM (recommended devices)
+
+Reference bill of materials. Models to **verify for local availability (Albania/EU)**; the
+payment terminal is dictated by the acquiring bank. (See [[parking-system-architecture]] §9.)
+
+| Subsystem | Recommendation | Why |
+| --- | --- | --- |
+| Barrier operator | Magnetic Autocontrol / FAAC / CAME / Nice | Owns physical safety in firmware ([[barrier-not-a-door]]) |
+| Induction loops | Feig / BEA / EMX | Safety + free-exit detection |
+| Access controller | [[uhppote-controller]] now → ZKTeco later | Reader + relay; **isolate the VLAN** ([[network-isolation]]) |
+| Permit readers | Nedap/Kathrein UHF, or Mifare → [[wiegand]] | Hands-free, or autonomous offline decisions |
+| Casual identity | [[lpr-camera]] (Milesight, edge AI) | Plate = ticket + independent record |
+| Ticket dispenser | Custom VKP80 | Parking-grade thermal/ESC-POS |
+| Booth printer | Epson TM / Citizen (USB or network) | ESC/POS; one adapter covers both transports |
+| Payment | Bank-certified P2PE standalone terminal + cash drawer | Keeps the app out of **PCI-DSS scope** |
+| Host machine | Fanless industrial PC + UPS + [[atecc608]] | Reliability, power-loss safety, offline signing |
+| Network | Managed VLAN switch, PoE+ | Isolate the open control protocol |
+
+Open procurement-driving decisions live in [[open-questions]] (esp. lane topology, payment
+subsystem). Payment subsystem detail: a standalone certified terminal keeps PCI scope out of
+the application — [[open-questions]] #3.