plwiki_talk: add record links and redacted citations (v2#110)
Adds the per-record links and source citations to plwiki_talk (v2#110, 1A, 3B). Needs the code in the wikivoyage PR (#141). Text and labels are unchanged (43,054 documents).
Sidecar: each line gains permalink, history_url, license_urls and conversion. The build recorded no revision id, so permalink is the stub dump's revision made at last_revision_at: where two were made in that second (172 rows), the higher id; null for the 13 pages deleted since.
citations lists the non-empty <ref> bodies, then the Cytuj.../Cite... templates outside them: 5,215 citations on 1453 rows. They are read from the build's dump (20260901 pages-meta-current), whose revision of every row has the shipped last_revision_at and wikitext length. Personal data in them is redacted with the text's patterns: 16 (6 IPv4, 4 IPv6, 1 legacy IPv6 pattern, 3 account-number candidates, 2 e-mail addresses), counted in qa.json (citations). The patterns' false positives carry over (two ISBNs in a row can read as an account number, a DOI or a :: as an IP address). NERGAL (v2#60) has to cover the field too. source_notes is an empty list on every row.
Card: documents the fields, adds the quotation paragraph (Art. 29) and rewords the Not-checked entry to whether comments quoting text from outside Wikipedia stay within Art. 29.
Tests: test_plwiki_talk_contract passes for plwiki_talk with this data and the code PR. README, CHANGELOG and totals are left to v2#80.
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refs/pr/144 ref