feat(noter): wire memory detection panel + Walruscan explorer links

apps/noter/app/api/memory/remember-one/route.ts

@@ -0,0 +1,74 @@
+/**
+ * Memory Remember One API — saves a single approved memory text to MemWal.
+ * Used by the memory panel's "Approve" flow (individual memory saves).
+ * Returns { id, blob_id, owner, namespace } for blockchain data display.
+ */
+
+import { rememberText } from "@/feature/note/lib/pdw-client";
+import { db } from "@/shared/lib/db";
+import { zkLoginSessions, walletSessions, users } from "@/shared/db/schema";
+import { eq } from "drizzle-orm";
+
+async function resolveUserKey(req: Request) {
+  const sessionId = req.headers.get("x-session-id");
+  if (!sessionId) return { key: null, accountId: null };
+
+  const [session] = await db
+    .select()
+    .from(walletSessions)
+    .where(eq(walletSessions.id, sessionId))
+    .limit(1);
+
+  if (!session?.userId || session.expiresAt < new Date()) {
+    const [zkSession] = await db
+      .select()
+      .from(zkLoginSessions)
+      .where(eq(zkLoginSessions.id, sessionId))
+      .limit(1);
+    if (!zkSession?.userId || zkSession.expiresAt < new Date()) {
+      return { key: null, accountId: null };
+    }
+    const [user] = await db.select().from(users).where(eq(users.id, zkSession.userId)).limit(1);
+    return {
+      key: user?.delegatePrivateKey ?? null,
+      accountId: user?.delegateAccountId ?? null,
+    };
+  }
+
+  const [user] = await db.select().from(users).where(eq(users.id, session.userId)).limit(1);
+  return {
+    key: user?.delegatePrivateKey ?? null,
+    accountId: user?.delegateAccountId ?? null,
+  };
+}
+
+export async function POST(req: Request) {
+  try {
+    const { text } = await req.json();
+
+    if (!text || typeof text !== "string") {
+      return Response.json({ error: "text is required" }, { status: 400 });
+    }
+
+    if (text.trim().length < 10) {
+      return Response.json({ error: "Text too short to remember" }, { status: 400 });
+    }
+
+    const { key, accountId } = await resolveUserKey(req);
+    if ((!key || !accountId) && (!process.env.MEMWAL_KEY || !process.env.MEMWAL_ACCOUNT_ID)) {
+      return Response.json(
+        { error: "[MemWal] No accountId configured — sign in with Enoki or set MEMWAL_ACCOUNT_ID in .env" },
+        { status: 401 },
+      );
+    }
+
+    const result = await rememberText(text, key, accountId);
+    return Response.json(result);
+  } catch (error) {
+    console.error("[memory/remember-one] Error:", error);
+    return Response.json(
+      { error: error instanceof Error ? error.message : "Unknown error" },
+      { status: 500 },
+    );
+  }
+}

apps/noter/package/feature/note/hook/use-note-memory-save.ts

@@ -13,8 +13,20 @@
 
 import { useState } from "react";
 import { useLexicalComposerContext } from "@lexical/react/LexicalComposerContext";
-import { $getMemoryById } from "../plugins/MemoryHighlightPlugin";
-import { UPDATE_MEMORY_STATUS_COMMAND } from "../plugins/MemoryHighlightPlugin";
+import { $getMemoryById, UPDATE_MEMORY_STATUS_COMMAND } from "../plugins/MemoryHighlightPlugin";
+import { STORAGE_KEYS } from "@/feature/auth/constant";
+import type { SessionData } from "@/feature/auth/domain/type";
+
+function getSessionId(): string | null {
+  if (typeof window === "undefined") return null;
+  try {
+    const raw = sessionStorage.getItem(STORAGE_KEYS.sessionId);
+    if (!raw) return null;
+    return (JSON.parse(raw) as SessionData | null)?.sessionId ?? null;
+  } catch {
+    return null;
+  }
+}
 
 export function useNoteMemorySave() {
   const [editor] = useLexicalComposerContext();
@@ -47,10 +59,13 @@ export function useNoteMemorySave() {
         status: "uploading",
       });
 
-      // Call server-side API to remember (v2 SDK)
-      const response = await fetch("/api/memory/remember", {
+      const sessionId = getSessionId();
+      const response = await fetch("/api/memory/remember-one", {
         method: "POST",
-        headers: { "Content-Type": "application/json" },
+        headers: {
+          "Content-Type": "application/json",
+          ...(sessionId ? { "x-session-id": sessionId } : {}),
+        },
         body: JSON.stringify({ text: memoryText }),
       });
 

apps/noter/package/feature/note/plugins/MemoryHighlightPlugin.tsx

@@ -154,7 +154,42 @@ export function MemoryHighlightPlugin({
             if (index === -1) {
               index = findUnusedOccurrence(trimmedMemoryText);
               if (index !== -1) {
-                matchedText = trimmedMemoryText; // We matched the trimmed version!
+                matchedText = trimmedMemoryText;
+              }
+            }
+
+            // If that fails, try fuzzy match: case-insensitive search,
+            // then find the best overlapping substring between LLM text and editor text
+            if (index === -1) {
+              const lowerFull = fullText.toLowerCase();
+              const lowerMemory = trimmedMemoryText.toLowerCase();
+
+              // Strategy 1: case-insensitive exact match
+              const ciIndex = lowerFull.indexOf(lowerMemory);
+              if (ciIndex !== -1 && !usedPositions.has(ciIndex)) {
+                index = ciIndex;
+                matchedText = fullText.slice(ciIndex, ciIndex + trimmedMemoryText.length);
+              }
+
+              // Strategy 2: find longest common substring (min 10 chars)
+              if (index === -1) {
+                let best = { start: -1, len: 0 };
+                for (let i = 0; i < lowerFull.length; i++) {
+                  for (let j = 0; j < lowerMemory.length; j++) {
+                    if (lowerFull[i] !== lowerMemory[j]) continue;
+                    let k = 0;
+                    while (i + k < lowerFull.length && j + k < lowerMemory.length && lowerFull[i + k] === lowerMemory[j + k]) {
+                      k++;
+                    }
+                    if (k > best.len) {
+                      best = { start: i, len: k };
+                    }
+                  }
+                }
+                if (best.len >= 10 && !usedPositions.has(best.start)) {
+                  index = best.start;
+                  matchedText = fullText.slice(best.start, best.start + best.len);
+                }
               }
             }
 

apps/noter/package/feature/note/ui/memory-hover-preview.tsx

@@ -12,6 +12,7 @@ import { Card, CardContent } from "@/shared/components/ui/card";
 import { Separator } from "@/shared/components/ui/separator";
 import type { MemoryData } from "@/shared/db/type";
 import { cn } from "@/shared/lib/utils";
+import { ZKLOGIN_CONFIG } from "@/feature/auth/constant";
 import {
   AlertCircle,
   CheckCircle2,
@@ -205,16 +206,17 @@ export function MemoryHoverPreview({
                     <span className="text-xs text-muted-foreground font-mono truncate">
                       {memory.memwalMemoryId.slice(0, 16)}...
                     </span>
-                    <button
-                      onClick={(e) => {
-                        e.stopPropagation();
-                        // TODO: Open in Sui Explorer
-                        navigator.clipboard.writeText(memory.memwalMemoryId!);
-                      }}
-                      className="flex items-center gap-1 text-xs text-blue-600 dark:text-blue-400 hover:underline"
-                    >
-                      <ExternalLink className="h-3 w-3" />
-                    </button>
+                    {memory.memwalBlobId && (
+                      <a
+                        href={`https://walruscan.com/${ZKLOGIN_CONFIG.network}/blob/${memory.memwalBlobId}`}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        onClick={(e) => e.stopPropagation()}
+                        className="flex items-center gap-1 text-xs text-blue-600 dark:text-blue-400 hover:underline"
+                      >
+                        <ExternalLink className="h-3 w-3" />
+                      </a>
+                    )}
                   </div>
 
                   {/* Blob ID */}

apps/noter/package/feature/note/ui/memory-panel-enhanced.tsx

@@ -36,6 +36,7 @@ import {
 import { forwardRef, useCallback, useEffect, useRef, useState } from "react";
 import { toast } from "sonner";
 import { useNoteMemorySave } from "../hook/use-note-memory-save";
+import { ZKLOGIN_CONFIG } from "@/feature/auth/constant";
 import { $getAllMemories, REMOVE_MEMORY_HIGHLIGHT_COMMAND, UPDATE_MEMORY_STATUS_COMMAND } from "../plugins/MemoryHighlightPlugin";
 
 const STATUS_CONFIGS = {
@@ -433,18 +434,17 @@ const MemoryCard = forwardRef<HTMLDivElement, MemoryCardProps>(
                   <div className="space-y-1 text-xs text-muted-foreground font-mono">
                     <div className="flex items-center justify-between gap-2">
                       <span className="truncate">Memory: {memory.memwalMemoryId.slice(0, 12)}...</span>
-                      <Button
-                        variant="ghost"
-                        size="sm"
-                        className="h-5 w-5 p-0"
-                        onClick={(e) => {
-                          e.stopPropagation();
-                          // TODO: Add link to Sui Explorer
-                          toast.info("Opening in Sui Explorer...");
-                        }}
-                      >
-                        <ExternalLink className="h-3 w-3" />
-                      </Button>
+                      {memory.memwalBlobId && (
+                        <a
+                          href={`https://walruscan.com/${ZKLOGIN_CONFIG.network}/blob/${memory.memwalBlobId}`}
+                          target="_blank"
+                          rel="noopener noreferrer"
+                          onClick={(e) => e.stopPropagation()}
+                          className="shrink-0 p-0.5 text-blue-600 dark:text-blue-400 hover:underline"
+                        >
+                          <ExternalLink className="h-3 w-3" />
+                        </a>
+                      )}
                     </div>
                     {memory.memwalBlobId && (
                       <div className="truncate">Blob: {memory.memwalBlobId.slice(0, 12)}...</div>

apps/noter/package/feature/note/ui/note-editor.tsx

@@ -36,6 +36,10 @@ import { MarketingBorder } from "@/package/shared/components/border";
 import { Button } from "@/shared/components/ui/button";
 import { Check, Loader2, Save, XCircle } from "lucide-react";
 import { useNote } from "../hook/use-note";
+import { MemoryHighlightNode } from "../nodes/MemoryHighlightNode";
+import { MemoryHighlightPlugin } from "../plugins/MemoryHighlightPlugin";
+import { MemoryPanelEnhanced } from "./memory-panel-enhanced";
+import { MemoryDetectButton } from "./memory-detect-button";
 
 // ════════════════════════════════════════════════════════════════════════════
 // EDITOR CONFIG
@@ -56,6 +60,7 @@ const editorConfig = {
     TableCellNode,
     TableRowNode,
     HorizontalRuleNode,
+    MemoryHighlightNode,
   ],
   onError(error: Error) {
     console.error("Lexical error:", error);
@@ -249,6 +254,7 @@ export function NoteEditor({ noteId }: NoteEditorProps) {
       {/* Toolbar */}
       <div className="border-b p-4 flex items-center justify-start gap-3">
         <SaveNoteButton onSaveToDb={saveImmediate} />
+        <MemoryDetectButton noteId={noteId} />
       </div>
 
       {/* Editor */}
@@ -275,10 +281,11 @@ export function NoteEditor({ noteId }: NoteEditorProps) {
           <CodeHighlightPlugin />
           <MarkdownShortcutPlugin transformers={CHAT_TRANSFORMERS} />
           <AutoSavePlugin onSave={save} />
-
+          <MemoryHighlightPlugin />
 
           <MarketingBorder />
         </div>
+        <MemoryPanelEnhanced onSaveComplete={saveImmediate} />
       </div>
     </LexicalComposer>
   );