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

dispatch/conversation/in_memory.go

@@ -0,0 +1,43 @@
+package conversation
+
+import (
+	"context"
+	"sync"
+)
+
+// MemoryStorage is the default in-process Storage. It is safe for
+// concurrent use. Conversation state is lost on process restart; use
+// a custom Storage backed by a database for persistent flows.
+type MemoryStorage struct {
+	mu    sync.RWMutex
+	state map[string]State
+}
+
+// NewMemoryStorage constructs an empty in-memory storage.
+func NewMemoryStorage() *MemoryStorage {
+	return &MemoryStorage{state: map[string]State{}}
+}
+
+func (s *MemoryStorage) Get(_ context.Context, key string) (State, error) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	v, ok := s.state[key]
+	if !ok {
+		return "", ErrKeyNotFound
+	}
+	return v, nil
+}
+
+func (s *MemoryStorage) Set(_ context.Context, key string, state State) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.state[key] = state
+	return nil
+}
+
+func (s *MemoryStorage) Delete(_ context.Context, key string) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	delete(s.state, key)
+	return nil
+}