data(mobile): import Smartprix device records

[Seungpyo1007]

Summary

• import Smartprix mobile records from Kaggle (mayankkumarpoddar/smartprix-mobiles-dataset)
• add 2,333 smartphones, 1 tablet, and 25 referenced SoC stubs with verified: false
• refresh the published v1 dump for the imported Smartprix records
• correct one source typo from Samaung Galaxy F70e to Samsung Galaxy F70e

Import policy

• Source: https://www.kaggle.com/datasets/mayankkumarpoddar/smartprix-mobiles-dataset
• Imported records remain verified: false until manual/TechEngine verification.
• Feature phones and unknown device types were skipped.
• Future records beyond the current date window and invalid numeric ranges were excluded.
• Unmapped chipset rows were imported without forcing synthetic SoC links.

Verification

• python -m app.validate PASS
• python TechEngine\integrity_check.py data --strict PASS
• git diff --check origin/main...HEAD PASS
• cd site && npm.cmd run build PASS

Closes #1