chore: Export all functions used by server cmd (#7118)

* chore: Export all functions used by server cmd

Required to make workspace proxy cmd
* Factor out httpservers and tracer

cli/root.go

@@ -711,7 +711,7 @@ func (h *headerTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 	return h.transport.RoundTrip(req)
 }
 
-// dumpHandler provides a custom SIGQUIT and SIGTRAP handler that dumps the
+// DumpHandler provides a custom SIGQUIT and SIGTRAP handler that dumps the
 // stacktrace of all goroutines to stderr and a well-known file in the home
 // directory. This is useful for debugging deadlock issues that may occur in
 // production in workspaces, since the default Go runtime will only dump to
@@ -723,7 +723,7 @@ func (h *headerTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 // A SIGQUIT handler will not be registered if GOTRACEBACK=crash.
 //
 // On Windows this immediately returns.
-func dumpHandler(ctx context.Context) {
+func DumpHandler(ctx context.Context) {
 	if runtime.GOOS == "windows" {
 		// free up the goroutine since it'll be permanently blocked anyways
 		return