[Feature Request] Add projectsDirectory setting to relocate per-project state from ~/.claude/projects/

Summary

autoMemoryDirectory already lets me relocate memories into the repo itself
(e.g. ./.claude/memory/). But the rest of per-project state — session
transcripts (.jsonl), file-history snapshots, tool-results, shell-snapshots,
session-env — is still hardcoded under ~/.claude/projects/<cwd-slug>/.

Please add an equivalent setting to relocate this state to a project-local
path.

Use case

I share ~/.claude with a teammate (dotfiles repo). Per-project state
accumulating in the globally-shared dir is:

• Cross-contaminating between our individual work
• Bloating the global config we sync
• Invisible to teammates who would benefit from parts of it (e.g. context

Claude has built up about a shared repo)

• Hard to clean up per-repo — the <slug> encoding is ambiguous (a hyphen in

a real dir name is indistinguishable from a path separator), so there's no
reliable way to map a slug back to a repo without filesystem guessing

Moving per-project state _into_ the project solves all of these. Memory
already can; sessions can't.

Current workaround

Per-repo symlink before first launch:

mkdir -p /path/to/repo/.claude/state
ln -s /path/to/repo/.claude/state ~/.claude/projects/<slug-for-that-repo>

Problems:

• Must be set up before Claude is ever launched in that repo, or the real dir

gets created first

• Requires knowing the slug encoding
• Breaks if the repo is renamed/moved
• cleanupPeriodDays deletions happen inside the repo, which is surprising

Proposed

Add a setting analogous to autoMemoryDirectory:

{
  "projectsDirectory": "./.claude/state"
}

• Allowed in user settings (~/.claude/settings.json) and local settings

(~/.claude/settings.local.json or .claude/settings.local.json in a repo)

• Not allowed in project settings (.claude/settings.json), same safety

reasoning as autoMemoryDirectory — a shared repo shouldn't be able to
redirect your writes

• Relative paths resolve against cwd at launch time
• When unset, default stays at ~/.claude/projects/<slug>/

Nice-to-have: per-component toggles

Not everyone wants everything in the repo. Expose individual overrides so
users can mix:

• sessionsDirectory — .jsonl transcripts
• fileHistoryDirectory — pre-edit snapshots (checkpoint restore)
• toolResultsDirectory — large tool output spillover
• shellSnapshotsDirectory — session shell state
• debugDirectory — per-session debug logs

Typical split I'd want: memory + debug in the repo (shareable), transcripts

• file-history global or gitignored (personal history).

Why it matters

With autoMemoryDirectory alone, my ~/.claude/ still accumulates opaque
per-project state that nobody can untangle without a migration script. A
projectsDirectory setting would close the gap and let teams actually
commit useful Claude context to their repos.

Environment Info

• Platform: linux
• Terminal: tmux
• Version: 2.1.104
• Feedback ID: a675128c-70ee-4105-8b3b-7cfa78a71656