Implement Phase 2: Next.js + React Flow frontend MVP

- Scaffold Next.js 15 app with TypeScript, Tailwind, App Router
- Install @xyflow/react, Zustand, Lucide icons, nanoid
- Define council types (AgentNodeData, CouncilBlueprint, WSMessage, etc.)
- Implement Zustand store for canvas and run state
- Build custom AgentNode component (label, system prompt, model badge, tool chips, active pulse)
- Build ConditionalEdge component (dashed indigo line with condition label)
- Build NodeSidebar (drag-and-drop + click to add agents)
- Build NodeSettingsPanel (name, system prompt, model selector, tool toggles)
- Build ArchitectCanvas (React Flow canvas with drop zone, minimap, controls)
- Build blueprint parser (React Flow JSON ↔ CouncilBlueprint JSON)
- Build API client for FastAPI backend (CRUD + run endpoints)
- Build useCouncilWebSocket hook for live agent status via WebSocket
- Build Tab A: Rat-Architekt (canvas builder with save/export toolbar)
- Build Tab B: Konferenzzimmer (execution view with live diagram + result panel)
- Add NavTabs navigation with CouncilOS branding
- All TypeScript checks passing

https://claude.ai/code/session_01EkbecUVn7esdxLCXxVVRDX

frontend/eslint.config.mjs

@@ -0,0 +1,18 @@
+import { defineConfig, globalIgnores } from "eslint/config";
+import nextVitals from "eslint-config-next/core-web-vitals";
+import nextTs from "eslint-config-next/typescript";
+
+const eslintConfig = defineConfig([
+  ...nextVitals,
+  ...nextTs,
+  // Override default ignores of eslint-config-next.
+  globalIgnores([
+    // Default ignores of eslint-config-next:
+    ".next/**",
+    "out/**",
+    "build/**",
+    "next-env.d.ts",
+  ]),
+]);
+
+export default eslintConfig;