Built a Python CSV cleanup automation sample that normalizes messy order data, validates rows, removes duplicate order IDs, and generates clean output plus a reject report. Includes runnable sample files, README, and unit tests.
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Added a clear JSON payload size limit to an Express API and returned a 413 client error for oversized request bodies. Normal JSON login payloads still work and focused regression tests cover normal and oversized requests.
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Implemented an explicit upload policy for an Express API route. The change allows only JPEG, PNG, GIF, and PDF files, rejects files over 10 MB with client errors, and adds regression coverage for allowed uploads, unsupported MIME types, and oversized requests.
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Fixed a DSN-to-Circuit JSON conversion bug where non-numeric pin identifiers, rotated labels, dashed labels, quoted suffixes, and via IDs could be parsed incorrectly. Added regression coverage and verified the Smoothieboard conversion path.