Remove unused Codex protocol registries and session APIs

internal/codex/gen/main.go

@@ -19,8 +19,6 @@ var clientMethods = []string{
 	"thread/start",
 	"thread/resume",
 	"thread/fork",
-	"thread/read",
-	"thread/compact/start",
 	"turn/start",
 	"turn/steer",
 	"turn/interrupt",
@@ -269,22 +267,11 @@ func (g *gen) generate(version string) []byte {
 	}
 	h.WriteString(")\n\n")
 
-	writeTable := func(name string, ms []method, field func(method) string) {
-		fmt.Fprintf(&h, "var %s = map[string]func() any{\n", name)
-		for _, m := range ms {
-			t := field(m)
-			if t == "" {
-				fmt.Fprintf(&h, "Method%s: nil,\n", pascal(m.name))
-				continue
-			}
-			fmt.Fprintf(&h, "Method%s: func() any { return &%s{} },\n", pascal(m.name), t)
-		}
-		h.WriteString("}\n\n")
+	h.WriteString("var notificationMethods = map[string]struct{}{\n")
+	for _, m := range notifications {
+		fmt.Fprintf(&h, "Method%s: {},\n", pascal(m.name))
 	}
-	writeTable("clientResults", client, func(m method) string { return m.response })
-	writeTable("notificationParams", notifications, func(m method) string { return m.params })
-	writeTable("serverRequestParams", requests, func(m method) string { return m.params })
-	writeTable("serverRequestResponses", requests, func(m method) string { return m.response })
+	h.WriteString("}\n\n")
 
 	h.Write(g.consts.Bytes())
 	h.Write(g.out.Bytes())