feat: path input improvements, Ctrl+D delete, scrollback fix, copyClaudeDir

[google-q-dot]

Summary

Three sets of improvements to the new session dialog and session management, cherry-picked from open PRs #26 and #42, plus new path input features:

Path Input Improvements (new)

• Ctrl+V paste support — Async clipboard reader (src/core/clipboard.ts) for terminals without bracketed paste (WSL/Windows Terminal); also added usePaste hook to InputAutocomplete to ensure suggestions update after bracketed paste
• Filesystem-aware path autocomplete — resolvePathCompletion() in src/core/filesystem.ts shows matching subdirectories as you type a path, merged with history suggestions via pathSuggestions createMemo
• Ctrl+B directory browser — New DialogDirectoryBrowser component to navigate filesystem and find git repos; git repos marked with ★; once selected, worktree checkbox auto-appears via existing reactive isGitRepo() effect

From PR #42: Ctrl+D delete session + scrollback fix

• Ctrl+D in tmux — Signal file pattern (/tmp/agent-view-delete-session) to delete current session from within attached tmux; status bar hint added
• Scrollback fix — All \x1b[2J\x1b[H → \x1b[2J\x1b[3J\x1b[H across tmux.ts, ssh.ts, updater.ts (9 occurrences) to clear scrollback buffer and prevent session switching artifacts
• refresh-client after switch — switch-client -n/-p now followed by refresh-client to force redraw

From PR #26: copyClaudeDir + footer hints

• copyClaudeDir — New copyClaudeDir() in src/core/git.ts copies .claude directory to new worktrees; controlled by copyClaudeDir config field (off by default)
• Settings dialog — New "Copy .claude to worktree" toggle (Yes/No) in settings (c keybind)
• Dynamic footer — When path/branch field is focused, footer shows "↓↑ browse | Tab/→ select | Ctrl+B dir | Enter create"

Test plan

• Open new session dialog, focus path field → Ctrl+V should paste clipboard content
• Type a path prefix (e.g. /home/) → autocomplete shows subdirectories
• Press Ctrl+B → directory browser opens; navigate to a git repo → worktree checkbox appears
• Attach a session, press Ctrl+D → detach and show delete confirmation
• Switch between sessions (Ctrl+]/) → no scrollback artifacts from previous session
• Settings: toggle "Copy .claude to worktree" to Yes → create worktree session → verify .claude copied
• Settings: toggle back to No → verify .claude not copied
• Footer hint: verify dynamic text changes when focusing path/branch fields
• bun run build + bun test pass (145 tests, 0 fail)

🤖 Generated with Claude Code

[Snailflyer]

The Ctrl+V, Ctrl+D, scrollback, and session-switch changes all touch the same user-visible risk: the UI can look attached while the live tmux target is different or gone.

One cross-flow test I would add:

• attach to session A
• switch away and back
• force redraw / scroll-to-bottom
• send a tiny input
• assert the same tmux session/pane consumed it and the output cursor advanced

For Ctrl+D, I would also keep delete confirmation separate from tmux/session teardown: delete_requested, tmux_session_killed, detached_only, stale_view, or wrong_session_focused.

That is the same boundary I use in Faryo: a phone/browser surface is trustworthy only when the original live tmux-backed session consumes the action, not when the UI state refreshes cleanly. Reference proof shape: https://github.com/Snailflyer/faryo/releases/download/v1.0.7/faryo-public-redacted-same-session-handoff-walkthrough-20260528-0120.gif