data(brand): backfill founded_year and website for known brands

[Seungpyo1007]

Summary

Backfill brand metadata for brands with confidently-known facts:

• founded_year for 25 brands (Casio 1957, HP 1939, Dell 1984, Amazon 1994, Bosch 1886, Mitsubishi 1921, Sagem 1925, Vodafone 1991, Sony Ericsson 2001, BenQ-Siemens 2005, Fujitsu Siemens 1999, Palm 1992, Thuraya 1997, Haier 1984, O2 2002, Benefon 1988, Sendo 1999, Neonode 2004, MiTAC 1982, Amoi 1997, Ningbo Bird 1992, Sonim 1999, Modu 2007, INQ 2008, Blackview 2013).
• website for 6 active brands (Thuraya, Haier, Bosch, Orange, Prestigio, Vodafone).

Uncertain founding years and ambiguous/defunct websites were intentionally left blank (no wrong dates, no dead links). Matching site/public/v1/brands dump details refreshed.

Verification

• python -m app.validate PASS
• python TechEngine/integrity_check.py data --strict PASS
• git diff --check origin/main...HEAD PASS
• Local site build skipped (worktree without node_modules); change is build-safe metadata; TechEngine homepage validation builds the site.

Closes #1

[TechEngineBot]

TechEngine change review: PASS

• PR: data(brand): backfill founded_year and website for known brands #46
• Ref: data/brand-metadata
• Commit: a275e79
• Requested by: @Seungpyo1007
• Run: https://github.com/GetTechAPI/TechEngine/actions/runs/27915482856

Check	Result
python -m app.validate	PASS
python integrity_check.py TechAPI/data --strict	PASS

Changed data

Category	Added	Modified	Deleted	Added verified	Added unverified	Added Kaggle-sourced
brand	0	0	0	0	0	0
soc	0	0	0	0	0	0
smartphone	0	0	0	0	0	0
tablet	0	0	0	0	0	0
watch	0	0	0	0	0	0
pda	0	0	0	0	0	0
gpu	0	0	0	0	0	0
cpu	0	0	0	0	0	0

Changed record examples

• No data file changes detected.

Heuristic review

• Heuristic warnings: none found.

[TechEngineBot]

TechEngine validation stats: PASS

• PR: data(brand): backfill founded_year and website for known brands #46
• Ref: data/brand-metadata
• Commit: a275e79
• Run: https://github.com/GetTechAPI/TechEngine/actions/runs/27915482856

Data summary

Category	Total	Verified	Unverified	Missing verified	Tracked	Verified % of tracked
brand	189	0	189	0	189	0.0%
soc	2104	58	2046	0	2104	2.8%
smartphone	90118	184	89934	0	90118	0.2%
tablet	3048	0	3048	0	3048	0.0%
watch	378	0	378	0	378	0.0%
pda	110	0	110	0	110	0.0%
gpu	2030	0	2030	0	2030	0.0%
cpu	3977	976	3001	0	3977	24.5%
all	101954	1218	100736	0	101954	1.2%

Warning

Tracked verified coverage is below 50% for brand 0.0% (0/189), tablet 0.0% (0/3048), watch 0.0% (0/378), pda 0.0% (0/110), gpu 0.0% (0/2030), smartphone 0.2% (184/90118), all 1.2% (1218/101954), soc 2.8% (58/2104), and 1 more.
Tracked coverage excludes records missing the verified field; see the Missing verified column for those records.
This does not fail validation. Keep imported records verified: false until manual audit, but treat this as follow-up verification work before relying on the affected categories as curated data.

Validation notes

• Full advisory outlier listings are suppressed on successful runs because they are dataset-wide and mostly stable between PRs.
• Failure runs still include a detailed log excerpt for debugging.

Key output:

## app.validate
## integrity_check.py --strict
loaded CPU=3977 GPU=2030
✅ integrity gate: no hard anomalies.

Integrity section	Flagged lines
structural	0
CPU name/tier consistency (desktop mainstream only)	0
CPU single>multi (cinebench/geekbench — should be multi>=single)	0
CPU era-vs-score outliers	8
CPU cross-source ratio outliers (possible wrong-variant)	152
GPU cross-source ratio outliers + sanity	18