data(mobile): import smartdevices tablet and watch records

[Seungpyo1007]

Summary

• import 46 tablet records from the public smartdevices_pricing source supplement
• import 29 watch records from the same source supplement
• keep all imported records verified: false for later TechEngine/manual audit
• refresh tablet/watch public dump indexes and newly added detail pages

Data added

Category	Added	Verified	Unverified	Source
tablet	46	0	46	GitHub smartdevices_pricing
watch	29	0	29	GitHub smartdevices_pricing
all	75	0	75	GitHub smartdevices_pricing

Verification

• python -m app.validate
• python TechEngine\integrity_check.py data --strict
• git diff --check origin/main...HEAD

Closes #1