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.lock

@@ -99,7 +99,7 @@ dependencies = [
 
 [[package]]
 name = "jjf"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "anyhow",
  "crossterm",