chore(release): 0.2.0

Picker now renders jj's real graph (merge connectors and all). Cursor
and filter skip decorative connector rows; hint row drops trailing
key/label pairs to fit a single line on narrow terminals; cursor
arrow glyphs changed to ●──▶.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "jjf"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2024"
 rust-version = "1.85"
 authors = ["Stephen Waits <steve@waits.net>"]