Initial scaffold: full-stack RackMapper application

Complete project scaffold with working auth, REST API, Prisma/SQLite
schema, Docker config, and React frontend for both Rack Planner and
Service Mapper modules. Both server and client pass TypeScript strict
mode with zero errors. Initial migration applied.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,43 @@
+# Dependencies
+node_modules/
+client/node_modules/
+
+# Environment - never commit secrets
+.env
+.env.local
+.env.*.local
+
+# Build output
+dist/
+client/dist/
+
+# Database - persisted via Docker volume
+data/
+*.db
+*.db-journal
+*.db-wal
+*.db-shm
+
+# Prisma generated client (regenerated on build)
+node_modules/.prisma/
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Editor
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Test coverage
+coverage/
+
+# TypeScript incremental build info
+*.tsbuildinfo