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/projects/ProjectsView.tsx

@@ -908,6 +908,7 @@ export function ProjectsView() {
           // while the menu bar above stays visible.
           <SettingsView
             section={settingsSection}
+            projectId={active?.id}
             onSectionChange={setSettingsSection}
             onClose={() => setSettingsSection(null)}
           />