Add pedigree lookup and ancestry tree page

New 🌳 Pedigree view: enter a dog's ISO chip or SKK registration number
and see its ancestry rendered as a tree. SKK has no public API, so the
server drives SKK Hunddata like a browser: it resolves the input to an
internal hundid via the Hund_sok.aspx/HundData page-method, renders 7
generations per pedigree page, parses the rowspan grid into ahnentafel
positions, and follows each generation's leaves deeper by reading their
hundid out of the __doPostBack response viewstate.

A lookup returns the first 7 generations immediately and crawls deeper in
the background; the client polls and fills the tree in as ancestors
arrive. Finished trees are cached per dog in a new pedigree_cache table
(pedigrees don't change), so a dog is crawled once and repeats are instant.
The endpoints sit behind auth like the rest of /api/*, and the crawl is
kept polite (warmed session, delay between requests, one coalesced job per
dog, hard caps).

This commit is contained in:

Alexander Heldt

2026-07-26 09:22:14 +00:00

parent 374e630d8f

commit 26ebe3bd86

11 changed files with 1458 additions and 1 deletions

									
										server/go.mod
									
		+1
		
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				@@ -4,6 +4,7 @@ go 1.25.0

				require (

					golang.org/x/crypto v0.54.0

					golang.org/x/net v0.57.0

					modernc.org/sqlite v1.53.0

				)