site: editorial tooling, grid masonry fix, new reviews + finds

UI / dev tooling
- /find/ index: sort by file birthtime desc (sub-day chronology even when
  many finds share the same frontmatter date); render the captured-at on
  its own line under the host (~0.65rem mono muted)
- New dev-only filter at the top of /find/: All / Not in lists, persisted
  in localStorage; "not in lists" hides finds referenced by any superpost
- New editorial-tags chip strip on each find card (dev-only): selected
  tags visible by default, full picker on hover/focus-within with a "…"
  button for arbitrary tag entry; clicks copy /edit-find-tag <slug> <tag>
  to the clipboard via the existing EditConfirm singleton
- New optional editorialTags: string[] field on the find collection
- New src/data/editorial-tags.json — master list of available tags (initial
  set: ["delete"]); display order follows file order

/grid/ now uses the JS Masonry component instead of CSS column-count, so
the middle column no longer "dips"; tile hover updated to match the home
page's accent-glow / no-translate style

Content
- New review: apex-markdown-processor (graduated from find of same slug;
  hero reused from the find folder)
- New review: sindre-sorhus-older-mac-apps (graduated; intentionally
  hero-less per the source page's text-only design)
- New review: superkey (added by user; hero wired in src/lib/hero.ts)
- 24 new finds captured by /daily-finds across travel, jokes, quotes,
  product picks, and indie tools
- 2 new finds superposts: 2026-05-04-a-small-atlas, 2026-05-04-off-until-needed

Misc
- daily-finds.log.md and candidate-sources.md updated with the day's runs
- build-finds skill prompt iterated by user

src/content/find/unsolicited-book-covers/index.mdx

@@ -0,0 +1,13 @@
+---
+name: "Jenny Volvovski's Unsolicited Book Covers"
+subtitle: "A working designer redesigns her own library, one book at a time"
+date: 2026-05-04
+link: "https://www.jennyvolvovski.com/category/unsolicited"
+source: "Kottke.org"
+topics:
+  - general-delight
+tags: [design, books, typography, project]
+description: "Designer Jenny Volvovski's personal project: redesigning the covers of books in her own library, working within a fixed palette of green, black, and white."
+---
+
+A working book-cover designer set herself a constraint — green, black, white, fixed typefaces — and quietly redesigned dozens of books from her own shelf. *Crime and Punishment*, *The Handmaid's Tale*, *Americanah*, *There There*. The palette gives the project visual cohesion and the volume turns it into a long-form study in how typography and a single piece of imagery do the work of a cover.