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)

crates/application/src/agent/lifecycle.rs

@@ -1800,6 +1800,17 @@ impl LaunchAgent {
         self
     }
 
+    /// Replaces the default native-skill resolver with the shared effective
+    /// resolver used by runtime context injection and `idea_skill_read`.
+    #[must_use]
+    pub fn with_assigned_skill_resolver(mut self, resolver: Arc<AssignedSkillResolver>) -> Self {
+        self.agent_capabilities = Arc::new(ResolveAgentCapabilities::with_resolver(Arc::clone(
+            &resolver,
+        )));
+        self.assigned_skills = resolver;
+        self
+    }
+
     /// Injects the local model-server ensure use case used by OpenCode profiles.
     #[must_use]
     pub fn with_local_model_server(mut self, ensure: Arc<EnsureLocalModelServer>) -> Self {
@@ -4364,6 +4375,7 @@ mod tests {
                 snapshot: domain::AssignedSkillSnapshot {
                     skill_id: skill.id,
                     scope: skill.scope,
+                    plugin: None,
                     name: skill.name.clone(),
                     description: skill.effective_description(),
                     kind: skill.kind,