feat(verify): score software and websites with batched Wikidata liveness

[Seungpyo1007]

Software and website records lacked domain rules and could not earn green. Add completeness fields and plausibility checks using the actual imports, plus a check-wikidata command that batches 50 QIDs per request into the existing promotion URL cache.

The command uses an identified User-Agent, maxlag=5, sequential requests spaced by one second, incremental cache saves, freshness filtering before the QID cap (older generic HTTP verdicts are rechecked), and a default maximum of 20,000 IDs. Generic URL checks also route Wikidata citations through the entity batcher so HTTP redirects cannot overwrite dead entity verdicts. Existing entities are alive; missing and redirect entities are dead; transport, maxlag and malformed-response failures remain uncached for retry. The network workflow restores the URL cache between runs so later runs advance through the frontier.

Missing optional fields are neutral in consistency and reflected in completeness. Malformed calendar dates hard-fail; early/future dates, malformed lists, missing QID citations and malformed homepage URLs are soft flags. Website imports use launch_date; 290 pre-Web dates include publisher founding dates (e.g. AccuWeather, 1962), so these ambiguities do not force red. Software dates are checked against 1950 and the current year; website launch/release against 1989, founded dates against 1800.

Entity liveness does not confirm record claims. Label/date/homepage cross-reference is deferred because multilingual aliases and imported inception/release semantics need separate rules; the existing contradiction veto remains intact.

Field coverage (filled means neither null nor an empty string/list/object; false booleans count as populated):

Category	Field	Present	Filled	Fill rate
software	developers	10,014	10,014	23.57%
software	genres	1,222	1,222	2.88%
software	licenses	13,916	13,916	32.75%
software	name	42,493	42,493	100.00%
software	operating_systems	12,395	12,395	29.17%
software	programming_languages	5,279	5,279	12.42%
software	publishers	1,027	1,027	2.42%
software	release_date	4,514	4,514	10.62%
software	slug	42,493	42,493	100.00%
software	source_urls	42,493	42,493	100.00%
software	verified	42,493	42,493	100.00%
website	homepage_url	34,409	34,409	85.84%
website	languages	11,913	11,913	29.72%
website	launch_date	13,833	13,833	34.51%
website	name	40,084	40,084	100.00%
website	owners	5,149	5,149	12.85%
website	slug	40,084	40,084	100.00%
website	source_urls	40,084	40,084	100.00%
website	verified	40,084	40,084	100.00%

Local status results (2026-09-27):

Category	Total	Green	Yellow	Red
software	42,493	216	42,277	0
website	40,084	7,623	32,461	0

Flag counts: software has zero flags; website has 290 launch_date_plausible and 1 homepage_http_url; neither category has hard failures or missing-QID flags. Existing T2 weighting remains unchanged: sparse Wikidata-only records remain yellow, and green still needs a live cited T1/T2 source for promotion. No records were promoted by this change.

Validation: 481 tests passed in the complete pytest suite with an external data checkout and explicit basetemp; 19 focused cache/coverage tests passed after the final routing update; mypy passed over all 107 app files; ruff passed over app/tests. Mock HTTP tests cover 50-ID batches, deduplication, missing/redirect entities, rate spacing, maxlag failures, shared cache persistence and promotion decisions.

Refs #98
Refs GetTechAPI/TechAPI#297

API contract: wbgetentities documentation, MediaWiki API etiquette.