PR #807 collapsed the top #code-agent-summary and per-message debug panels
into a 调试信息 dialog, but the conversation list still showed two hard-coded
System cards (界面模式 / Code Agent 状态) that fed availability into the
agent run path. Both appeared as full <article class="message-card
message-system"> bubbles before any user message on every session load,
contradicting the issue goal of a clean agent / user conversation feed.
- remove the ConversationPanel intro useMemo + [...intro, ...messages]
spread; the conversation list now only contains real agent / user
messages.
- move the static 界面模式 content to a small muted hint line under the
panel title (id=workspace-hint, .conversation-panel-hint).
- the live Code Agent availability snapshot is already covered by the
existing #code-agent-summary + 调试信息 dialog, so it is dropped.
- add a conversation-list empty-state placeholder so the panel keeps
height for layout smoke (messages.length === 0).
- delete the now-orphan MessageRuntimePath / MessageSessionContinuity /
MessagePendingContext components (no remaining callers per rg).
- extend tools/capture-issue-803-noise.mjs to report each .message-card
role plus systemMessageCount / roleCounts so layout-level evidence
can assert "no message-system in the conversation list".
web:check 12 pass / 0 fail; web:layout:build pass (desktop, narrow,
mobile). Issue: pikasTech/HWLAB#803
Codex Agent
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