refactor(ux): consolidate BMAD skills, update design system, and clean up Prisma generated client

keep-notes/lib/ai/services/memory-echo.service.ts

@@ -61,6 +61,7 @@ export class MemoryEchoService {
       where: {
         userId,
         isArchived: false,
+        trashedAt: null,
         noteEmbedding: { isNot: null } // Only notes with embeddings
       },
       select: {
@@ -284,6 +285,11 @@ Explain in one brief sentence (max 15 words) why these notes are connected. Focu
     )
 
     // Store insight in database
+    // In demo mode, add milliseconds offset to avoid @@unique([userId, insightDate]) collision
+    const insightDateValue = demoMode
+      ? new Date(Date.now() + Math.floor(Math.random() * 1000))
+      : new Date()
+
     const insight = await prisma.memoryEchoInsight.create({
       data: {
         userId,
@@ -291,7 +297,7 @@ Explain in one brief sentence (max 15 words) why these notes are connected. Focu
         note2Id: newConnection.note2.id,
         similarityScore: newConnection.similarityScore,
         insight: insightText,
-        insightDate: new Date(),
+        insightDate: insightDateValue,
         viewed: false
       },
       include: {
@@ -410,6 +416,7 @@ Explain in one brief sentence (max 15 words) why these notes are connected. Focu
         userId,
         id: { not: noteId },
         isArchived: false,
+        trashedAt: null,
         noteEmbedding: { isNot: null }
       },
       select: {