Create build system (#1)

client/client.mk

@@ -0,0 +1,33 @@
+client/node_modules:
+	bun install --cwd client
+
+client/dst:
+	mkdir client/dst
+
+client/dst/%.html: \
+	client/src/%.html \
+	client/node_modules \
+	client/dst \
+	$(SEARCH_REPLACE)
+	cat $< | bun run --cwd client html-minifier \
+		--collapse-inline-tag-whitespace \
+		--collapse-boolean-attributes \
+		--collapse-whitespace \
+		--remove-attribute-quotes \
+		--remove-comments \
+		--remove-redundant-attributes | \
+	$(SEARCH_REPLACE) \
+		'##LT##' '<' \
+		'##GT##' '>' \
+	> $@
+
+client/dst/%.js: client/src/%.ts client/node_modules client/dst
+	bun build $< --minify --outfile $@
+
+client/dst/%.css: client/src/%.scss client/node_modules client/dst
+	cat $< | bun run --cwd client sass --stdin --style compressed > $@
+
+.PHONY: client_clean
+client_clean:
+	rm -rf client/dst
+	rm -rf client/node_modules