[BUG] Stream import files in interpreters to reduce memory usage

[Jonathon-Meney-Torq]

Closes pimcore/platform-version#425

Large import files could exhaust PHP memory during queue preparation. Interpreters now stream instead of loading whole files:

• JSON/SQL: streamed via json-machine when the JMESPath is a simple field path (full-load fallback for complex expressions)
• XML: streamed via XMLReader for simple absolute element paths, XSD validated incrementally (full-DOM fallback for complex XPath)
• XLSX: chunked reads (1000 rows) instead of loading the whole workbook
• Archive-import-file option now streams into application_log storage instead of file_get_contents

Adds halaxa/json-machine ^1.2. Unit tests included for all streaming paths. 53MB JSON verified at 16.7MB peak memory.

[Copilot]

Pull request overview

Introduces memory-conscious streaming and chunked processing for large import files.

Changes:

• Streams JSON/SQL and simple-path XML records.
• Processes XLSX files in chunks.
• Streams archived imports into application-log storage and adds tests/dependency support.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
composer.json	Adds JSON Machine dependency.
src/DataSource/Interpreter/AbstractInterpreter.php	Streams archived import files to storage.
src/DataSource/Interpreter/ChunkedRowsReadFilter.php	Filters spreadsheet rows by chunk.
src/DataSource/Interpreter/JsonFileInterpreter.php	Adds JSON streaming and validation.
src/DataSource/Interpreter/XlsxFileInterpreter.php	Adds chunked XLSX importing.
src/DataSource/Interpreter/XmlFileInterpreter.php	Adds XMLReader-based streaming.
tests/unit/JsonStreamingInterpreterTest.php	Tests JSON streaming behavior.
tests/unit/XlsxChunkedReadTest.php	Tests XLSX chunk filtering and reading.
tests/unit/XmlStreamingInterpreterTest.php	Tests XML streaming and validation.

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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud