Merge-time fix for #676 (review finding 1 and nit 7). The Git worktrees modal
launches Claude through POST /api/sessions with workingDir
<case>/.claude/worktrees/<name>, which inferLocalCaseName did not recognise,
so the session landed in Ungrouped while the same gesture for any other CLI
(quick-start with the case name) landed in the group. The inference now
strips a trailing .claude/worktrees/<name> lexically before its two checks,
reusing CLAUDE_WORKTREE_PATH (hoisted to module scope). It also runs only for
a named workingDir, never on the server's own cwd, as the hook and skill
injection above already do. Route tests for both, failing without the fix;
api-reference and architecture-invariants say so.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>