data(brand): backfill founded_year + Wikidata logos (Bosch, Orange, Pixio)

[Seungpyo1007]

Summary

Final brand-metadata backfill of this enrichment run, sourced from Wikidata with strict verification (no fabrication).

• logo_url — added for Bosch and Orange via website-domain-matched Wikidata P154 (their P856 official-website matched the brand's stored website).
• founded_year — added for Orange (1988) and Pixio (2016) from Wikidata P571 inception; Bosch already had 1886.
• ~50 remaining brands without a logo/founded_year are obscure or defunct phone makers (tel-me, wnd, verykool, koorui, innocn, …) with no confident Wikidata entity — the domain / country+company-type match correctly declines them rather than guess. Left unchanged.

All records verified: false. Validation passes. Dump regenerated — 3 changed brand detail pages.

Closes #1

[Seungpyo1007]

🤖 TechEngine · data validation

category   changed   verified
brand         3         false

• python -m app.validate → ✅ passed (0 errors), 108,575 records / 10 categories.
• Fields added: logo_url ×2 (Bosch, Orange), founded_year ×2 (Orange 1988, Pixio 2016).
• Dump regenerated: 3 brand detail pages (v1/brands/{bosch,orange,pixio}/).

Additive field fills only — no schema change.

[Seungpyo1007]

🤖 TechEngine · verify (Tier 0)

Reality-checked sourcing:

• logo_url accepted only when a candidate Wikidata entity's P856 (official website) equals the brand's stored website domain → its P154 logo → commons Special:FilePath URL.
• founded_year taken from P571 (inception) on that same verified entity, gated to plausible years.
• ~50 obscure/defunct brands with no confident entity stay unfilled — no fabricated values.

verified promotion remains with the verify-network job. Safe to rebase-merge.