Add _try_codex_jsonl parser for Codex CLI session files stored at
~/.codex/sessions/YYYY/MM/DD/rollout-*.jsonl.
Uses only event_msg entries (user_message / agent_message) which
represent the canonical conversation turns. response_item entries
are intentionally skipped — they include synthetic context injections
(environment_context) and can duplicate real messages when both
representations are present in the same rollout.
Format based on Codex source tests (codex-rs/rollout/src/recorder_tests.rs).
Requires session_meta header to reduce false positives on other JSONL.
Refs: #59
Add Milla's conversational explanation of the palace architecture
(wings → rooms → closets → drawers → halls → tunnels) as an
introductory section before the technical diagram.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
adv3nt3