Add Sindoh filament

[Icezaza2543]

Summary

Add the documented Sindoh 3DWOX filament catalog in the existing SpoolmanDB source format.

Variants added

• PLA, 700 g, 1.75 mm: White, Black, Gray, Red, Yellow, Green, Blue, Pink, Purple
• ABS, 600 g, 1.75 mm: White, Black, Gray, Red, Yellow, Green, Blue
• 3DWOX 7X PLA, 1.5 kg, 1.75 mm: White, Blue
• Flexible (represented as TPU), 500 g, 1.75 mm: White, Black, Red, Green, Yellow, Orange
• PVA+, 500 g, 1.75 mm: Natural

Sources

• Sindoh 3DWOX 5X/7X user manual (consumable material/color/weight matrix): https://www.sindoh.com/hubfs/site/catalog/7X_RODIN-H%20%EA%B5%AD%EB%AC%B8_%EC%82%AC%EC%9A%A9%EC%84%9C.pdf
• Sindoh 3DWOX 2X user manual (diameter and recommended temperatures): https://www.sindoh.com/hubfs/site/catalog/2X_%EC%82%AC%EC%9A%A9%EC%84%A4%EB%AA%85%EC%84%9CSDH%20%EA%B5%AD%EB%AC%B8.pdf
• Sindoh PLA refill product page: https://m.sindoh4u.com/goods/view?no=46
• Sindoh ABS refill product page: https://m.sindoh4u.com/goods/view?no=45
• Sindoh 3DWOX 7X 1.5 kg PLA product page: https://m.sindoh4u.com/goods/view_contents?no=77&view_preload=1&zoom=1
• Sindoh PVA+ refill product page: https://m.sindoh4u.com/goods/view_contents?no=72&zoom=1
• Sindoh PLA SDS: https://upload.3dprinter.sindoh.com/supplies/1524015361174__PLA_MSDS.pdf
• Sindoh ABS SDS: https://upload.3dprinter.sindoh.com/supplies/1524015481099__ABS_MSDS.pdf
• Sindoh consumables listing (including Flexible refill kits): https://www.sindoh.com/ko/customer/total-search-result.php?key_word=2X+DP303

Notes

• Sindoh calls its flexible product Flexible; it is represented with the schema-supported TPU material key while retaining Flexible in the product name.
• These products are refill filament, but the current upstream schema has no refill field. spool_type is therefore left unset rather than incorrectly describing a refill as a plastic or cardboard spool.
• PETG and ASA are deliberately omitted because Sindoh documents them as third-party open materials, not Sindoh filament products.
• Color values are conservative representative swatches where Sindoh does not publish official HEX values.

Validation

• python -m check_jsonschema --schemafile materials.schema.json materials.json
• python -m check_jsonschema --schemafile filaments.schema.json filaments/*
• python scripts/compile_filaments.py
• Manual inspection: 25 Sindoh compiled variants and 25 unique IDs; no unintended weight/color/diameter combinations
• git diff --check