Initial scaffold for AvtoAmbor parts inventory

SvelteKit 2 + Svelte 4 + adapter-node, SQLite via better-sqlite3 (WAL,
foreign keys on). Bilingual EN/Тоҷикӣ throughout, locale persisted in
localStorage.

Pages: dashboard (totals, low stock, recent movements), parts list with
search and sort, part create/edit, record movement (in/out/adjust with
smart unit-price and adjust-quantity prefill), suppliers list with
inline add.

Schema: categories, suppliers, parts (with _en/_tg name+description
columns, dirams for money), stock_movements with check on movement_type.
On-hand updates are done in JS inside a transaction with the movement
insert.

Dockerized dev: docker compose, named project, bind-mounted data/ for
DB persistence. Seed contains 6 categories, 4 suppliers, 31 realistic
parts (Lada / Nexia / Opel / Toyota bias).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Makefile

@@ -0,0 +1,56 @@
+.PHONY: help install run build db-init db-reset docker-build docker-shell clean clean-all
+
+DC := docker compose
+
+help:
+	@echo ""
+	@echo "  ╔════════════════════════════════════════════════╗"
+	@echo "  ║  AvtoAmbor — auto parts inventory (dev tasks)  ║"
+	@echo "  ╚════════════════════════════════════════════════╝"
+	@echo ""
+	@echo "  make install       Install npm dependencies inside the container"
+	@echo "  make run           Start the dev server (http://localhost:5173)"
+	@echo "  make build         Production build into ./build (adapter-node)"
+	@echo "  make db-init       Create data/avtoambor.db from schema + seed (skip if exists)"
+	@echo "  make db-reset      DELETE and recreate data/avtoambor.db (asks first)"
+	@echo "  make docker-build  Rebuild the Docker image"
+	@echo "  make docker-shell  Open an interactive bash shell in the container"
+	@echo "  make clean         Remove node_modules and build/ (keeps data/)"
+	@echo "  make clean-all     Also wipe data/ (destroys the DB)"
+	@echo ""
+
+install:
+	@$(DC) run --rm app npm install
+
+run:
+	@$(DC) up
+
+build:
+	@$(DC) run --rm app npm run build
+
+db-init:
+	@if [ -f data/avtoambor.db ]; then \
+		echo "data/avtoambor.db already exists — skipping. Use 'make db-reset' to recreate."; \
+	else \
+		mkdir -p data && $(DC) run --rm app node scripts/init-db.js; \
+	fi
+
+db-reset:
+	@printf "This will DELETE data/avtoambor.db. Continue? [y/N] " && read ans && [ "$$ans" = "y" ] || (echo "aborted." && exit 1)
+	@rm -f data/avtoambor.db data/avtoambor.db-shm data/avtoambor.db-wal
+	@mkdir -p data
+	@$(DC) run --rm app node scripts/init-db.js
+
+docker-build:
+	@$(DC) build
+
+docker-shell:
+	@$(DC) run --rm app bash
+
+clean:
+	@rm -rf node_modules build .svelte-kit
+	@echo "removed node_modules, build/, .svelte-kit/  (data/ kept)"
+
+clean-all: clean
+	@rm -rf data
+	@echo "wiped data/ as well."