fix(CLAUDE.md): use reliable workplan discovery in step 2

Glob with pattern 'workplans/*.md' from repo root fails silently
(tool limitation with subdirectory prefixes in patterns). Changed to
Glob(pattern="**/*.md", path="workplans/") which does find files,
with Bash ls as fallback. This fixes step 2 of the session protocol
silently producing no workplan results.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -24,8 +24,9 @@ If the call fails, the API is offline: `cd ~/the-custodian/state-hub && make api
 
 **Step 2 — Scan local workplans**
 
-Read every file matching `workplans/*.md` in this repo. For each one with
-`status: active`, extract and note:
+Read every `.md` file under `workplans/`. Use `Glob(pattern="**/*.md", path="workplans/")`
+or Bash `ls workplans/` to discover them. For each file with `status: active`,
+extract and note:
 - The workplan title and ID
 - All tasks whose `status` is `todo` or `in_progress`