feat(v0.21): keisei SSoT relocation + Scope enum (user/project)
Two architect-audit P1/P2 findings closed.
PART A — SSoT relocation
Before: ~/.claude/keisei-attached.toml (baked Claude-Code subpath)
After: ~/.keisei/attached.toml (client-neutral)
config::migrate_from_legacy() runs inside config::read() — first
call after v0.21 install reads legacy path, writes new path,
deletes legacy, emits stderr notice.
claude_code adapter's .claude/ subpath UNCHANGED — that's Claude
Code's real config dir, not keisei's marker namespace.
PART B — Scope enum (architect P1)
ClientAdapter trait gains:
fn supported_scopes(&self) -> &[Scope] { &[Scope::User] } // default
fn config_path(&self, scope: Scope) -> PathBuf
fn attach(&self, brain: &Brain, scope: Scope) -> Result<()>
fn detach(&self, brain_name: &str, scope: Scope) -> Result<()>
Per-adapter scope support:
claude_code — [User, Project] (~/.claude vs ./.claude)
cursor — [User, Project] (~/.cursor vs ./.cursor)
continue — [User] only (Continue has no project concept)
zed — [User] only (Zed uses global settings)
CLI: keisei attach <brain> --scope={user|project} (default user).
keisei mount → always Scope::User (host-wide fan-out).
Marker Attachment gains scope field with #[serde(default)] so
v0.20 markers read as Scope::User (backward-compat).
New Error::ScopeUnsupported { client, scope, supported } — blocks
invalid combos (e.g. zed --scope=project) with clear message.
New module scope.rs (49 LOC) — Scope enum + serde + Display + FromStr.
paths.rs gains keisei_state_dir() returning $HOME/.keisei.
5 new integration tests:
- legacy_marker_migrates_on_first_read
- attach_with_project_scope_writes_local_config
- attach_user_scope_still_default
- scope_unsupported_by_adapter_errors
- detach_respects_scope_from_marker
REAL VERIFIED cargo test -p keisei output: 28 passed; 0 failed.
cargo check -p keisei: clean.
grep /Users/denisparfionovich/ in edits: zero hits.
Constructor Pattern: scope.rs 49 LOC, paths.rs 34 LOC, largest fn
migrate_from_legacy() 22 LOC.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
81e3b58533