feat(plugins): paramètres projet plugins + attribution skills/tools aux agents — #282 (manifeste accepte contributes.skills IdeA-native multi-harness; store .ideai/project-plugins.json v1: enable plugin par projet + assignments skills/tools par agent; refs + use cases settings/assign/unassign; resolver skills pour idea_skill_read et injection catalogue lancement agent; permissions MCP dynamiques projetées par harness Claude Code/Codex/OpenCode; tombstones uninstall, hot reload recalcule catalogue et marque assignments cassés; frontend: Settings projet Plugins, détail capabilities, attribution agent, catalogue permissions; bump pointeur IdeaSDK 6eb8db3; QA verte: cargo test -p application, project_plugin_settings 3/3, dto_plugins 2/2, structured_launch_d3 26/26, catalogue mcp 7/7, frontend 5 tests ProjectPluginSettings/plugin, npm build frontend)

frontend/src/features/plugins/ProjectPluginSettings.test.tsx

@@ -0,0 +1,105 @@
+import { fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { describe, expect, it } from "vitest";
+
+import { DIProvider } from "@/app/di";
+import { createMockGateways, MockPluginGateway } from "@/adapters/mock";
+import type { ProjectPluginManifest } from "@/domain";
+import { AgentPluginCapabilities } from "./AgentPluginCapabilities";
+import { ProjectPluginsPanel } from "./ProjectPluginsPanel";
+
+function manifest(): ProjectPluginManifest {
+  return {
+    ideaPluginManifestVersion: 1,
+    id: "dev.acme.unity",
+    displayName: "Unity Plugin",
+    publisher: "Acme",
+    version: "1.2.3",
+    main: "dist/index.js",
+    trustLevel: "full",
+    capabilities: ["ui", "mcp"],
+    activationScope: "app",
+    contributes: {
+      skills: [{
+        id: "unity.debug",
+        name: "unity-debug",
+        description: "Diagnostiquer les builds Unity.",
+        kind: "workflow",
+        path: "skills/unity-debug/SKILL.md",
+      }],
+      menus: [],
+      menuItems: [],
+      layouts: [],
+      mcpServers: [{ id: "unity-tools", displayName: "Unity Tools", transport: "stdio" }],
+    },
+  };
+}
+
+function gatewaysWithPlugin() {
+  const plugin = new MockPluginGateway();
+  plugin._seedProjectPluginManifest(manifest());
+  return { ...createMockGateways(), plugin };
+}
+
+describe("project plugin settings #282", () => {
+  it("lists globally installed plugins, details their capabilities and toggles project activation", async () => {
+    const gateways = gatewaysWithPlugin();
+    render(
+      <DIProvider gateways={gateways}>
+        <ProjectPluginsPanel projectId="project-1" />
+      </DIProvider>,
+    );
+
+    expect(await screen.findByText("Unity Plugin")).toBeTruthy();
+    expect(screen.getByText("Installé globalement")).toBeTruthy();
+    fireEvent.click(screen.getByText("Voir les capabilities"));
+    expect(screen.getByText("unity-debug")).toBeTruthy();
+    expect(screen.getByText("Unity Tools")).toBeTruthy();
+
+    const toggle = screen.getByRole("checkbox", { name: "Activé pour ce projet" });
+    fireEvent.click(toggle);
+    await waitFor(() => expect((toggle as HTMLInputElement).checked).toBe(true));
+    expect((await gateways.plugin.listProjectSettings("project-1")).settings.plugins).toEqual([
+      { pluginId: "dev.acme.unity", enabled: true },
+    ]);
+  });
+
+  it("assigns plugin skills and MCP tools to an agent and keeps stale references removable", async () => {
+    const gateways = gatewaysWithPlugin();
+    gateways.plugin._seedProjectPluginSettings("project-1", {
+      version: 1,
+      plugins: [{ pluginId: "dev.acme.unity", enabled: true }],
+      agents: [{
+        agentId: "agent-1",
+        skills: [{ pluginId: "missing.plugin", skillId: "removed-skill" }],
+        tools: [],
+      }],
+    });
+    render(
+      <DIProvider gateways={gateways}>
+        <AgentPluginCapabilities projectId="project-1" agentId="agent-1" agentName="Dev" />
+      </DIProvider>,
+    );
+
+    const skill = await screen.findByRole("checkbox", { name: /unity-debug/ });
+    fireEvent.click(skill);
+    await waitFor(() => expect((skill as HTMLInputElement).checked).toBe(true));
+    expect(screen.getByText(/removed-skill/).textContent).toContain("Obsolète ou manquant");
+
+    fireEvent.click(screen.getByLabelText("serveur MCP de plugin"));
+    fireEvent.click(screen.getByRole("option", { name: "Unity Plugin — Unity Tools" }));
+    fireEvent.change(screen.getByLabelText("nom du tool MCP"), {
+      target: { value: "unity_build" },
+    });
+    fireEvent.click(screen.getByRole("button", { name: "Attribuer" }));
+    expect(await screen.findByText("unity_build")).toBeTruthy();
+
+    const settings = (await gateways.plugin.listProjectSettings("project-1")).settings;
+    const agent = settings.agents.find((entry) => entry.agentId === "agent-1");
+    expect(agent?.skills).toContainEqual({ pluginId: "dev.acme.unity", skillId: "unity.debug" });
+    expect(agent?.tools).toContainEqual({
+      pluginId: "dev.acme.unity",
+      serverId: "unity-tools",
+      toolName: "unity_build",
+    });
+  });
+});