fix(agents): the claude projects root follows CLAUDE_CONFIG_DIR too (Issue #31, review)

stop resolves the uuid before it purges, through lib.sh's exported
CLAUDE_PROJECT_DIR and DiscoveryContext.claude_dir, both of which defaulted
to $HOME/.claude/projects. With CLAUDE_CONFIG_DIR alone the transcript under
<cfg>/projects was not found, so stop removed the row and purged nothing.
Both defaults are now ${CLAUDE_CONFIG_DIR:-<home>/.claude}/projects; an
explicit CLAUDE_PROJECT_DIR still wins.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.agents/skills/lib.sh

@@ -74,7 +74,8 @@ _MAM_DIALOG_TOKENS="${_MAM_MODAL_TOKENS}|${_MAM_HINT_TOKENS}"
 
 # Workspace-relative defaults with environment overrides (Phase Z)
 HOME_DIR="${HOME_DIR:-$HOME}"
-CLAUDE_PROJECT_DIR="${CLAUDE_PROJECT_DIR:-$HOME/.claude/projects}"
+# claude keeps projects/ under its config root, which CLAUDE_CONFIG_DIR moves (Issue #31).
+CLAUDE_PROJECT_DIR="${CLAUDE_PROJECT_DIR:-${CLAUDE_CONFIG_DIR:-$HOME/.claude}/projects}"
 if [ -z "${LOCAL_BIN:-}" ]; then
   if [ -x "$HOME_DIR/bin/herdr" ]; then
     LOCAL_BIN="$HOME_DIR/bin"

.agents/skills/lib_py/agents/adapters/claude.py

@@ -11,8 +11,8 @@ def _config_dir(ctx: DiscoveryContext) -> str:
 
 
 def _projects_dirs(ctx: DiscoveryContext) -> list:
-    """ctx.claude_dir (CLAUDE_PROJECT_DIR, else <home>/.claude/projects) and
-    the config root's own projects/, each once."""
+    """ctx.claude_dir (CLAUDE_PROJECT_DIR, else the config root's projects/)
+    and the config root's own projects/, each once."""
     dirs, seen = [], set()
     for d in (ctx.claude_dir, os.path.join(_config_dir(ctx), "projects")):
         real = os.path.realpath(d)

.agents/skills/lib_py/agents/base.py

@@ -156,7 +156,9 @@ class DiscoveryContext:
         self.workspace = workspace
         self.agent_name = agent_name
         self.home_dir = resolve_home(home_dir)
-        self.claude_dir = claude_dir or os.environ.get("CLAUDE_PROJECT_DIR", f"{self.home_dir}/.claude/projects")
+        # projects/ lives under claude's config root, which CLAUDE_CONFIG_DIR moves.
+        config_root = os.environ.get("CLAUDE_CONFIG_DIR") or f"{self.home_dir}/.claude"
+        self.claude_dir = claude_dir or os.environ.get("CLAUDE_PROJECT_DIR", f"{config_root}/projects")
         self.epoch = epoch
         self.row = row or {}
         self.mode = mode