fix: restore the files that the previous commit removed by mistake

The previous commit was made on a stale base and so reverted work that
landed on master before it. This commit puts every file back to the
state of its parent's parent. The permission enforcement of the
previous commit stays.

Assisted-by: Claude:claude-sonnet-5-5 go

addons/github/cmd/github/main.go

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: MIT
+
+// Command github is the executable of the GitHub add-on. It reads repositories
+// for the chats and the agents with a token that the host keeps for the person
+// and hands over with each call. The add-on stores no token and writes nothing
+// to GitHub.
+package main
+
+import (
+	"context"
+	"os"
+
+	"github.com/mudler/LocalAI/addons/github/internal/ghapi"
+	"github.com/mudler/LocalAI/addons/github/internal/platform"
+	"github.com/mudler/LocalAI/addons/github/internal/tools"
+	"github.com/mudler/LocalAI/addons/internal/connector"
+	"github.com/mudler/LocalAI/addons/internal/protocol"
+	"github.com/mudler/LocalAI/pkg/addons/contract"
+)
+
+type runtime struct {
+	*tools.Runtime
+	platform platform.Platform
+}
+
+func (r runtime) Connector(ctx context.Context, req contract.ConnectorRequest) (contract.ConnectorResponse, error) {
+	return connector.Serve(ctx, r.platform, req)
+}
+
+func main() {
+	os.Exit(protocol.Run(os.Args, func(protocol.Startup) contract.Runtime {
+		api := ghapi.New()
+		return runtime{Runtime: tools.New(api), platform: platform.Platform{API: api}}
+	}))
+}