Initial commit — Shop Manager for Tony Moon

Full auto mechanic shop management tool: jobs, invoices, estimates,
inspections, inventory, recommendations, technicians, appointments,
reports, file uploads, kanban board, and more.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/src/migrations/013_note_visibility.ts

@@ -0,0 +1,4 @@
+// Add visibility flag to job notes — 'internal' or 'customer'
+export const up = `
+  ALTER TABLE job_notes ADD COLUMN visibility TEXT NOT NULL DEFAULT 'internal';
+`;