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/redact.go

@@ -0,0 +1,15 @@
+package client
+
+import "regexp"
+
+// tokenInURL matches a Telegram bot token segment in a URL path. Tokens
+// have the form <bot_id>:<api_key>, where bot_id is digits and api_key
+// is 35 base64-url characters. The pattern is conservative: matches
+// /bot<id>:<key>/ to avoid false positives.
+var tokenInURL = regexp.MustCompile(`/bot(\d{5,15}):([A-Za-z0-9_-]{30,40})/`)
+
+// redactToken replaces any bot token in s with /bot<REDACTED>/. Used by
+// error formatters so logs don't leak credentials.
+func redactToken(s string) string {
+	return tokenInURL.ReplaceAllString(s, "/bot<REDACTED>/")
+}