Make disabled records obvious, and offer the right fix when checking a blocked name

Disabled records are hatched and badged next to their name. Checking a
name blocked by your own rule for that name offers to remove the rule,
instead of an allow rule that would be refused as a duplicate.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -46,9 +46,16 @@ All notable changes to Jarl are documented here. The format follows
   indents and Enter keeps the indentation (Esc, then Tab, moves on). With
   a draft open, the tables show the draft's values, so a staged edit stays
   visible after Save.
+- Records table: disabled records are hatched and have a "disabled" badge
+  next to their name, instead of only a muted colour and a badge in the
+  comment column.
 
 ### Fixed
 
+- Blocking page, checking a name: when your own block rule is for that very
+  name, it offers to remove the rule instead of an allow rule, which was
+  refused as a second rule for the same name. It also names the rule that
+  matched rather than the policy zone entry.
 - docs/validation.md lacked the `disabled_conflict` warning added in 0.3.0.
 
 ## [0.3.0] - 2026-10-09