Initial release of go-telegram

A fully-generated, strongly-typed Go client for the Telegram Bot API.

* 176 methods + 301 types generated from Bot API v10.0
* 1408 auto-generated tests (8 scenarios per method)
* Typed unions throughout — no 'any' in the public surface
* Pluggable HTTP transport and JSON codec (default goccy/go-json)
* Built-in retry middleware honouring Telegram's retry_after
* Generic dispatcher with filters and conversation handlers
* Self-verifying codegen pipeline (regen → audit → emit → run tests)
* 14 example bots covering common patterns

client/httpclient_test.go

@@ -0,0 +1,24 @@
+package client
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestDefaultHTTPClient_Do(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusTeapot)
+	}))
+	t.Cleanup(srv.Close)
+
+	doer := NewDefaultHTTPDoer()
+	req, err := http.NewRequest(http.MethodGet, srv.URL, nil)
+	require.NoError(t, err)
+	resp, err := doer.Do(req)
+	require.NoError(t, err)
+	defer resp.Body.Close()
+	require.Equal(t, http.StatusTeapot, resp.StatusCode)
+}