fix: remove dead --stream CLI flag (streaming is always used)

src/datamorph/cli.py

@@ -67,15 +67,13 @@ def cli() -> None:
 @click.option("--output-format", "-of", default=None, help="Output format (auto-detected from extension if omitted)")
 @click.option("--pretty", "-p", is_flag=True, help="Pretty-print JSON output")
 @click.option("--csv-delimiter", default=",", help="CSV delimiter (default: comma)")
-@click.option("--stream", is_flag=True, help="Use streaming mode (row-by-row, lower memory)")
 def convert_cmd(
     input: str,
     output: str,
     input_format: str | None,
     output_format: str | None,
     pretty: bool,
     csv_delimiter: str,
-    stream: bool,
 ) -> None:
     """Convert INPUT file to OUTPUT format."""
     writer_kwargs: dict[str, Any] = {}
@@ -89,7 +87,6 @@ def convert_cmd(
         output,
         input_format=input_format,
         output_format=output_format,
-        stream=stream,
         **writer_kwargs,
     )
 

src/datamorph/converters.py

@@ -398,7 +398,6 @@ def convert(
     output_path: str | Path,
     input_format: str | None = None,
     output_format: str | None = None,
-    stream: bool = False,
     **writer_kwargs: Any,
 ) -> ConversionResult:
     """Convert a file from one format to another.
@@ -408,7 +407,6 @@ def convert(
         output_path: Destination file path.
         input_format: Source format (auto-detected from extension if None).
         output_format: Target format (auto-detected from extension if None).
-        stream: If True, use streaming (row-by-row) conversion.
         **writer_kwargs: Additional kwargs passed to the format writer.
 
     Returns:

tests/test_converters.py

@@ -388,15 +388,6 @@ def test_batch_no_input(self, runner, tmp_path):
         ])
         assert result.exit_code == 0
 
-    def test_convert_with_stream_flag(self, runner, sample_csv, tmp_path):
-        output = tmp_path / "out.json"
-        result = runner.invoke(cli, [
-            "convert", str(sample_csv), str(output),
-            "--stream",
-        ])
-        assert result.exit_code == 0
-        assert "Converted" in result.output
-
     def test_formats_show_streaming(self, runner):
         result = runner.invoke(cli, ["formats"])
         assert result.exit_code == 0