Ingest and sources (workstream) #99

Purpose

Workstream tracker for ingest and sources, under the roadmap #97. PRs in this area link here with Closes #<this>.

Scope

• app/ingest collectors and parsers (Wikipedia CPU/GPU/smartphone tables, PassMark, notebookcheck, topcpu, SPEC, technical.city, cgdirector)
• app/ingest/enrich.py benchmark backfill runner (fill-only-nulls)
• weekly-ingest workflow (Monday, opens ingest/* PRs to TechAPI develop)

Rules

• Never invent values. A parser that can't read a field leaves it null; e.g. a bare "Cores" column doesn't imply a thread count (Parse multi-row headers in the Wikipedia GPU ingest; stop guessing threads #93).
• Dedup new slugs against existing ones in both directions and ignoring punctuation.
• Source policy follows TechAPI SPEC.md: GSMArena and PhoneDB only for corrections; Namuwiki banned; no bypassing anti-bot protection (Cloudflare, WAF).

Open items

• Wikipedia AMD Ryzen/EPYC list parsers (models live in column 1 under a family column 0); the importers currently live outside the engine.
• Transposed spec tables (MacBook/Surface-style "model per column") as a reusable parser.
• DX12 guard for topcpu GPU scores by architecture, not year (Time Spy estimates on TeraScale/Tesla-era cards).
• Xeon thread counts for about 390 rows (Intel spec pages; the tables list cores only).