Dismiss broken sessions, and hide ones untouched for a week

A broken session that will never be repaired kept the bar's warning dot lit
forever. repair-session now takes --ignore/--unignore/--unignore-all/--ignored,
recorded in ~/.claude-mode/ignored-sessions.json, and the scan hides broken
transcripts older than --max-age days (default 7, 0 disables,
CM_IGNORE_AGE_DAYS sets it). Hidden sessions move to a separate ignored[]
list with a reason, and --all always names how many it held back.

A repair clears the session's dismissal, and entries whose transcript is gone
are pruned, so a session that breaks again is never silently hidden.

The panel gets an Ignore button beside Repair and a collapsed "hidden (N)"
section with Restore. The dot still counts broken sessions only.

Bumps to 1.10.0 and fixes the widget manifest, which still said 1.8.0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

omarchy/smoido.claude-mode/manifest.json

@@ -2,7 +2,7 @@
   "schemaVersion": 1,
   "id": "smoido.claude-mode",
   "name": "Claude Mode",
-  "version": "1.8.0",
+  "version": "1.10.0",
   "author": "smoido",
   "description": "Which provider Claude Code is pointed at, and a one-click switch between them",
   "kinds": ["bar-widget"],