chore: convert submodules to standard directories for true monorepo structure

vibn-frontend/app/api/work-completed/route.ts

@@ -0,0 +1,42 @@
+import { NextResponse } from "next/server";
+import { query } from "@/lib/db-postgres";
+import type { WorkCompleted } from "@/lib/types";
+
+export async function GET(request: Request) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const projectId = searchParams.get("projectId");
+    const limit = searchParams.get("limit") || "20";
+
+    const workItems = await query<WorkCompleted>(
+      `SELECT
+        wc.*,
+        s.session_id,
+        s.primary_ai_model,
+        s.duration_minutes
+      FROM work_completed wc
+      LEFT JOIN sessions s ON wc.session_id = s.id
+      WHERE wc.project_id = $1
+      ORDER BY wc.completed_at DESC
+      LIMIT $2`,
+      [projectId || 1, limit],
+    );
+
+    // Parse JSON fields
+    const parsedWork = workItems.map((item) => ({
+      ...item,
+      files_modified:
+        typeof item.files_modified === "string"
+          ? JSON.parse(item.files_modified as any)
+          : item.files_modified,
+    }));
+
+    return NextResponse.json(parsedWork);
+  } catch (error) {
+    console.error("Error fetching work completed:", error);
+    return NextResponse.json(
+      { error: "Failed to fetch work completed" },
+      { status: 500 },
+    );
+  }
+}