feat: implement authentication context, admin node settings, and core layout components

src/app/api/admin/node/route.ts

@@ -0,0 +1,47 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { db } from '@/db';
+import { nodes } from '@/db';
+import { eq } from 'drizzle-orm';
+import { requireAdmin } from '@/lib/auth/admin';
+
+export async function PATCH(req: NextRequest) {
+    try {
+        await requireAdmin();
+        const data = await req.json();
+
+        const domain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
+
+        let node = await db.query.nodes.findFirst({
+            where: eq(nodes.domain, domain),
+        });
+
+        if (!node) {
+            [node] = await db.insert(nodes).values({
+                domain,
+                name: data.name || process.env.NEXT_PUBLIC_NODE_NAME || 'Synapsis Node',
+                description: data.description,
+                longDescription: data.longDescription,
+                rules: data.rules,
+                bannerUrl: data.bannerUrl,
+                accentColor: data.accentColor,
+            }).returning();
+        } else {
+            [node] = await db.update(nodes)
+                .set({
+                    name: data.name,
+                    description: data.description,
+                    longDescription: data.longDescription,
+                    rules: data.rules,
+                    bannerUrl: data.bannerUrl,
+                    updatedAt: new Date(),
+                })
+                .where(eq(nodes.id, node.id))
+                .returning();
+        }
+
+        return NextResponse.json({ node });
+    } catch (error) {
+        console.error('Update node settings error:', error);
+        return NextResponse.json({ error: 'Failed to update settings' }, { status: 500 });
+    }
+}

src/app/api/node/route.ts

@@ -0,0 +1,32 @@
+import { NextResponse } from 'next/server';
+import { db } from '@/db';
+import { nodes } from '@/db';
+import { eq } from 'drizzle-orm';
+
+export async function GET() {
+    try {
+        if (!db) return NextResponse.json({});
+
+        const domain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
+        const node = await db.query.nodes.findFirst({
+            where: eq(nodes.domain, domain),
+        });
+
+        if (!node) {
+            return NextResponse.json({
+                name: process.env.NEXT_PUBLIC_NODE_NAME || 'Synapsis Node',
+                description: process.env.NEXT_PUBLIC_NODE_DESCRIPTION || 'A federated social network node.',
+                accentColor: process.env.NEXT_PUBLIC_ACCENT_COLOR || '#00D4AA',
+                domain,
+            });
+        }
+
+        return NextResponse.json(node);
+    } catch (error) {
+        console.error('Node info error:', error);
+        return NextResponse.json({
+            name: process.env.NEXT_PUBLIC_NODE_NAME || 'Synapsis Node',
+            description: process.env.NEXT_PUBLIC_NODE_DESCRIPTION || 'A federated social network node.',
+        });
+    }
+}