data(mobile): import PhoneDB SoC and smartphone batch

[Seungpyo1007]

Summary

• import 21 PhoneDB-derived mobile processor seed records
• import 100 PhoneDB-derived smartphone records across Nokia, Motorola, Lenovo, HTC, Honor, Huawei, LG, Sony, ASUS, Infinix, OPPO, POCO, Realme, and Xiaomi
• keep all newly imported records as verified: false for later TechEngine/manual audit
• refresh the published site/public/v1 mobile indexes and detail JSON

Data source

• https://www.kaggle.com/datasets/sady36/mobile-phones-specs

Import notes

• skipped noisy carrier/product-code rows unless they resolved into clean public model names
• skipped the separate smartphone_specs Kaggle candidate set for this PR because it contains rumor/unreleased-looking model names that need stricter filtering first

Verification

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

Closes #1