Add clean-branches make target and docs

Document dataconnect environment options and add branch-cleaning tooling. Adds PROTECTED_BRANCHES.md listing protected branches (main, dev, demo/**). Updates Makefile help text to show ENV defaults for dataconnect targets, new bootstrap/backup/validation commands, and a tip about default ENV. Adds a new clean-branches .PHONY target in makefiles/tools.mk that validates the current branch, reads PROTECTED_BRANCHES.md, prompts for confirmation, switches to dev if necessary, and deletes non-protected local branches while reporting a summary.

Makefile

@@ -55,22 +55,25 @@ help:
 	@echo ""
 	@echo "  🗄️  DATA CONNECT & BACKEND (backend/dataconnect)"
 	@echo "  ────────────────────────────────────────────────────────────────────"
-	@echo "  make dataconnect-init            Initialize Firebase Data Connect"
+	@echo "  make dataconnect-init                Initialize Firebase Data Connect"
-	@echo "  make dataconnect-deploy          Deploy Data Connect schemas to Cloud SQL"
+	@echo "  make dataconnect-deploy [ENV=dev]        Deploy Data Connect schemas (dev/staging)"
-	@echo "  make dataconnect-sql-migrate     Apply pending SQL migrations"
+	@echo "  make dataconnect-sql-migrate [ENV=dev]   Apply pending SQL migrations"
-	@echo "  make dataconnect-generate-sdk    Regenerate Data Connect client SDK"
+	@echo "  make dataconnect-generate-sdk [ENV=dev]  Regenerate Data Connect client SDK"
-	@echo "  make dataconnect-sync            Full sync: deploy + migrate + generate SDK"
+	@echo "  make dataconnect-sync [ENV=dev]          Full sync: deploy + migrate + generate SDK"
-	@echo "  make dataconnect-seed            Seed database with test data"
+	@echo "  make dataconnect-seed [ENV=dev]          Seed database with test data"
-	@echo "  make dataconnect-clean           Delete all data from Data Connect"
+	@echo "  make dataconnect-clean [ENV=dev]         Delete all data from Data Connect"
-	@echo "  make dataconnect-test            Test Data Connect deployment (dry-run)"
+	@echo "  make dataconnect-test [ENV=dev]          Test Data Connect deployment (dry-run)"
-	@echo "  make dataconnect-enable-apis     Enable required GCP APIs"
+	@echo "  make dataconnect-enable-apis [ENV=dev]   Enable required GCP APIs"
-	@echo "  make dataconnect-bootstrap-db    ONE-TIME: Full Cloud SQL + Data Connect setup"
+	@echo "  make dataconnect-bootstrap-db            ONE-TIME: Full Cloud SQL + Data Connect setup (dev)"
+	@echo "  make dataconnect-bootstrap-validation-database  ONE-TIME: Setup validation database"
+	@echo "  make dataconnect-backup-dev-to-validation       Backup dev database to validation"
 	@echo ""
 	@echo "  🛠️  DEVELOPMENT TOOLS"
 	@echo "  ────────────────────────────────────────────────────────────────────"
 	@echo "  make install-melos        Install Melos globally (for mobile dev)"
 	@echo "  make install-git-hooks    Install git pre-push hook (protect main/dev)"
 	@echo "  make sync-prototypes      Sync prototypes from client-krow-poc repo"
+	@echo "  make clean-branches       Delete local branches (keeps main/dev/demo/**/protected)"
 	@echo ""
 	@echo "  ℹ️  HELP"
 	@echo "  ────────────────────────────────────────────────────────────────────"
@@ -79,4 +82,5 @@ help:
 	@echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
 	@echo " 💡 Tip: Run 'make mobile-install' first for mobile development"
 	@echo " 💡 Tip: Use 'make dataconnect-sync' after schema changes"
+	@echo " 💡 Tip: Default ENV=dev, use ENV=staging for staging environment"
 	@echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"

PROTECTED_BRANCHES.md

@@ -0,0 +1,5 @@
+# Protected Branches
+
+- `main`
+- `dev`
+- `demo/**`

makefiles/tools.mk

@@ -1,6 +1,6 @@
 # --- Development Tools ---
 
-.PHONY: install-git-hooks sync-prototypes install-melos
+.PHONY: install-git-hooks sync-prototypes install-melos clean-branches
 
 install-melos:
 	@if ! command -v melos >/dev/null 2>&1; then \
@@ -18,3 +18,39 @@ install-git-hooks:
 sync-prototypes:
 	@echo "--> Synchronizing prototypes from external repository..."
 	@./scripts/sync-prototypes.sh
+
+clean-branches:
+	@echo "--> Cleaning up local branches (keeping protected branches)..."
+	@CURRENT_BRANCH=$$(git branch --show-current); \
+	if [ "$$CURRENT_BRANCH" != "main" ] && [ "$$CURRENT_BRANCH" != "dev" ]; then \
+		echo "❌ Error: This command can only be run from 'main' or 'dev' branch."; \
+		echo "   Current branch: $$CURRENT_BRANCH"; \
+		echo "   Please checkout 'main' or 'dev' first."; \
+		exit 1; \
+	fi
+	@if [ ! -f "PROTECTED_BRANCHES.md" ]; then \
+		echo "⚠️  PROTECTED_BRANCHES.md not found. Aborting."; \
+		exit 1; \
+	fi
+	@echo "\nProtected branches (will NOT be deleted):"
+	@grep -E '^- `[^`]+`' PROTECTED_BRANCHES.md | sed 's/^- `\(.*\)`/  - \1/' 2>/dev/null || true
+	@echo "\n⚠️  This will delete all other local branches."
+	@read -p "Are you sure? (y/N): " confirm && [ "$$confirm" = "y" ] || [ "$$confirm" = "Y" ] || (echo "Aborted." && exit 1)
+	@CURRENT_BRANCH=$$(git branch --show-current); \
+	if [ "$$CURRENT_BRANCH" != "main" ] && [ "$$CURRENT_BRANCH" != "dev" ] && ! echo "$$CURRENT_BRANCH" | grep -q '^demo/'; then \
+		echo "\n⚠️  You are on branch '$$CURRENT_BRANCH' which will be deleted."; \
+		echo "Switching to 'dev' branch first..."; \
+		git checkout dev || (echo "❌ Failed to checkout dev branch" && exit 1); \
+	fi
+	@echo "\nDeleting branches..."
+	@DELETED=0; SKIPPED=0; \
+	for branch in $$(git branch | sed 's/^[* ] //' | grep -v '^main$$' | grep -v '^dev$$' | grep -v '^demo/'); do \
+		if grep -qE "^- \`$$branch\`" PROTECTED_BRANCHES.md 2>/dev/null; then \
+			echo "  ⏭️  Skipping protected: $$branch"; \
+			SKIPPED=$$((SKIPPED + 1)); \
+		else \
+			echo "  🗑️  Deleting: $$branch"; \
+			git branch -D "$$branch" 2>/dev/null && DELETED=$$((DELETED + 1)) || echo "    ⚠️  Failed to delete $$branch"; \
+		fi; \
+	done; \
+	echo "\n✅ Done! Deleted $$DELETED branch(es), skipped $$SKIPPED protected branch(es)."