`tool_diary_write` stored the `agent` metadata verbatim after `sanitize_name`
(which preserves case), while `tool_diary_read` filtered by exact match —
so writing as "Claude" and reading as "claude" silently returned zero rows.
Both endpoints now lowercase `agent_name` immediately after sanitization.
The default per-agent wing slug is also stable across casings since it's
derived from the same normalized form.
Behavior change: entries written prior to this fix under mixed-case agent
names will not match the new lowercase filter; documented under v3.3.5
in CHANGELOG with a `mempalace repair` pointer.
Adds a regression test (`test_diary_read_case_insensitive_agent`) and
updates the existing `test_diary_write_and_read` to assert the new
lowercase agent identity.
Closes#1243
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Igor Lins e Silva
e9222b4c7b