feat(go-crm): full auth, routing, middleware, and supporting infra

- Add auth handlers (signup, login, logout, account management) with bcrypt
- Add client, customer, service, scheduling, payment, question, answer handlers
- Add dashboard, monthly report, and lead pipeline pages
- Add UTF-8 middleware to force charset on HTML responses
- Add config package with env-based overrides for DB path, secrets, endpoints
- Add parser package for WhatsApp message ingestion
- Add clean-arch layers: pkg/domain, pkg/repo, pkg/usecase for leads
- Add cmd/migrate utility for DB migrations
- Add Makefile, README, run-tests.sh, and dev scripts
- Update docker-compose.yml with memory limits
- Update .air.toml to exclude DB files and stop on errors
- Update whatsapp-sync dependencies and add src/index.js entrypoint
- Add whatsme standalone WhatsApp reader app (source only)
- Untrack .opencode-sandbox/data/go-crm.db from git history
- Expand root .gitignore: ngrok, tmp dirs, sandbox DBs, compiled binaries

apps/go-crm/Makefile

@@ -0,0 +1,24 @@
+.PHONY: test test-watch build clean dev migrate
+
+test:
+	go test ./... -v
+
+test-watch:
+	while true; do \
+		inotifywait -q -e modify -e create -e delete -r internal/ 2>/dev/null || sleep 2; \
+		go test ./... -v; \
+	done
+
+build:
+	go build -o go-crm .
+
+clean:
+	rm -f go-crm
+
+dev:
+	./scripts/dev.sh
+
+migrate:
+	go build -o migrate cmd/migrate/main.go
+	./migrate
+	rm -f migrate