Replace the freeform `metadata.label` session grouping with nesting derived
from each session's working directory. The daemon's activity watcher already
polls each tmux pane every tick, so it now also captures
`#{pane_current_path}` and surfaces it as a new `Session.current_cwd`
(serde-default, back-compat); `cwd` stays the spawn dir for worktree
inference, spawn-similar, and recents.
Web catalog builds the tree from `current_cwd ?? cwd`, collapses the home
dir to `~`, and folds single-child folder chains so `~/git/maestro` reads as
one node. CLI swaps its LABEL column for an abbreviated DIR; the spawn forms
(web + TUI) and `--label` flag are removed.
The pane format stays space-delimited (parser splits the first three tokens
and keeps the remainder as the path) so a cwd containing spaces survives.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
naps62-yoloandClaude Opus 4.8
458c81094b