Move the AGENTS.md section editing into a click-to-open modal so the Basic
tab no longer expands the full document inline. Present the entry as a
settings-style row (title + description on the left, a "manage" button on the
right) instead of stacked label/hint/button.
Add optional move-up/move-down controls to MemorySection (off by default, so
MemoryBrowser is unaffected) and wire reordering in AgentGuideEditor: adjacent
sections swap and the whole file is re-saved, with a synthetic preamble pinned
to the top.
Add a friendly AGENTS.md section editor inside the edit-agent modal's
"高级" (Advanced) collapsible, alongside the existing additional-instructions
field. New AgentGuideEditor reuses MemorySection cards, parses the file into
## sections, and saves whole-file via the workspace API (no backend change).
Empty files offer a "create" scaffold flow.
Reword the collapsible to a generic "高级" and add a role-clarifying note that
fixes the boundary: factory identity goes in the form fields, evolving
memory/rules go in the context files. Also fix the additional-instructions
textarea so it fills the form width.
Closesmatevip/mateclaw#290
