feat: complete SHD MCP plugin workflows and widget

plugins/shd-mcp-plugin/skills/shd-active-projects/SKILL.md

@@ -18,7 +18,11 @@ description: Use when the user asks for all active SHD projects, project deadlin
 
    `Проект | Дата завершения | Статус`
 
-6. Preserve the server's project name/code and status. If a deadline is a
+6. If the user is in a UI-capable MCP host, call `shd_render_projects_widget`
+   after the data call, passing the returned `data` array as `projects` and the
+   returned `meta` object as `meta`. The widget is optional; the plain table
+   remains the fallback for hosts without MCP Apps UI.
+7. Preserve the server's project name/code and status. If a deadline is a
    datetime, format it with its returned timezone when available; otherwise
    keep the value unmodified and state that timezone data was unavailable.
 
@@ -31,3 +35,5 @@ description: Use when the user asks for all active SHD projects, project deadlin
 - If the server indicates more records than the tool can return, report that
   the current tool limit was reached; do not claim a complete list.
 - This workflow is read-only and must not update, archive or delete projects.
+
+See `references/project-widget.md` for the data/render boundary.

plugins/shd-mcp-plugin/skills/shd-active-projects/agents/openai.yaml

@@ -0,0 +1,5 @@
+interface:
+  display_name: Active SHD projects
+  short_description: Project deadlines and statuses
+policy:
+  allow_implicit_invocation: false

plugins/shd-mcp-plugin/skills/shd-active-projects/references/project-widget.md

@@ -0,0 +1,5 @@
+# Project widget contract
+
+Call the data tool first. Pass only the returned project array and metadata to
+the render tool. The widget is a presentation layer: it must not invent dates,
+statuses or project rows and must keep the plain structured table as fallback.