Move `parseUrls` out of stores/imports.svelte.ts (which transitively
imports Dexie via collections.ts) into a standalone parse-urls.ts so
the test file can exercise it without booting Dexie. The store re-
exports parseUrls so existing call sites (BulkImportForm, tools.ts)
keep working unchanged.
11 unit tests covering:
- empty + whitespace-only inputs
- newline / whitespace / comma / tab separator handling
- http + https accepted, ftp / mailto / javascript / file rejected
- bare domains rejected (URL accepts them as opaque, our parser
requires explicit scheme)
- duplicate detection preserves first-occurrence order
- canonicalisation (trailing slash on root, query+fragment kept)
- mixed valid / invalid / duplicate token ordering
- title-prefixed-paste behaviour (strict — surfaces non-URL words
as invalid for the user to see)
- 50-URL stress check
Plan: docs/plans/articles-bulk-import.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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