Refactor cat-file batch operations and support --batch-command approach (#35775)

Replace #34651 and address more problems including fix framework bugs and changing to QueryInfo and QueryContent calls.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

modules/git/catfile_batch_command.go

@@ -0,0 +1,63 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/git/gitcmd"
+)
+
+// catFileBatchCommand implements the CatFileBatch interface using the "cat-file --batch-command" command
+// for git version >= 2.36
+// ref: https://git-scm.com/docs/git-cat-file#Documentation/git-cat-file.txt---batch-command
+type catFileBatchCommand struct {
+	ctx      context.Context
+	repoPath string
+	batch    *catFileBatchCommunicator
+}
+
+var _ CatFileBatch = (*catFileBatchCommand)(nil)
+
+func newCatFileBatchCommand(ctx context.Context, repoPath string) (*catFileBatchCommand, error) {
+	if err := ensureValidGitRepository(ctx, repoPath); err != nil {
+		return nil, err
+	}
+	return &catFileBatchCommand{ctx: ctx, repoPath: repoPath}, nil
+}
+
+func (b *catFileBatchCommand) getBatch() *catFileBatchCommunicator {
+	if b.batch != nil {
+		return b.batch
+	}
+	b.batch = newCatFileBatch(b.ctx, b.repoPath, gitcmd.NewCommand("cat-file", "--batch-command"))
+	return b.batch
+}
+
+func (b *catFileBatchCommand) QueryContent(obj string) (*CatFileObject, BufferedReader, error) {
+	_, err := b.getBatch().writer.Write([]byte("contents " + obj + "\n"))
+	if err != nil {
+		return nil, nil, err
+	}
+	info, err := catFileBatchParseInfoLine(b.getBatch().reader)
+	if err != nil {
+		return nil, nil, err
+	}
+	return info, b.getBatch().reader, nil
+}
+
+func (b *catFileBatchCommand) QueryInfo(obj string) (*CatFileObject, error) {
+	_, err := b.getBatch().writer.Write([]byte("info " + obj + "\n"))
+	if err != nil {
+		return nil, err
+	}
+	return catFileBatchParseInfoLine(b.getBatch().reader)
+}
+
+func (b *catFileBatchCommand) Close() {
+	if b.batch != nil {
+		b.batch.Close()
+		b.batch = nil
+	}
+}