docs: add project task notes

docs/03 wrk/tasks/0006-wallpaper-randomizer.md

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+---
+aliases:
+  - "0006"
+  - Wallpaper Randomizer
+date-created: 2026-10-14 23:00
+date-modified: 2026-10-14 23:05
+status: open
+area: "[[dotfiles]]"
+blocked-by:
+  - "[[0005-rust-cli-scaffolding]]"
+subtasks: []
+---
+
+# Wallpaper Randomizer
+
+This is kind of two ideas in one:
+
+1. Randomizing the desktop wallpaper from a select list.
+2. A web service endpoint that provides a random image from a configured directory/set.
+
+The first idea might not need any special code, so it wouldn't be a CLI.
+
+I think that any tools I write should have both a non-interactive mode and a TUI or web server mode.