fix: add missing NoteHistory migration, fix manifest 403, add API error logging

- Commit untracked 20260428150000_add_note_history migration (creates
  NoteHistory table + noteHistory column) that was causing 500s in prod
- Exclude static files (.json, .svg, .ico, etc.) from auth middleware
  to fix manifest.json 403
- Add console.error to echo API routes for production debug visibility

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

memento-note/prisma/migrations/20260428150000_add_note_history/migration.sql

@@ -0,0 +1,43 @@
+-- CreateTable
+CREATE TABLE "NoteHistory" (
+    "id" TEXT NOT NULL,
+    "noteId" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "version" INTEGER NOT NULL,
+    "reason" TEXT,
+    "title" TEXT,
+    "content" TEXT NOT NULL,
+    "color" TEXT NOT NULL,
+    "isPinned" BOOLEAN NOT NULL,
+    "isArchived" BOOLEAN NOT NULL,
+    "type" TEXT NOT NULL,
+    "checkItems" TEXT,
+    "labels" TEXT,
+    "images" TEXT,
+    "links" TEXT,
+    "isMarkdown" BOOLEAN NOT NULL,
+    "size" TEXT NOT NULL,
+    "notebookId" TEXT,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "NoteHistory_pkey" PRIMARY KEY ("id")
+);
+
+-- AlterTable
+ALTER TABLE "UserAISettings"
+ADD COLUMN "noteHistory" BOOLEAN NOT NULL DEFAULT false;
+
+-- CreateIndex
+CREATE UNIQUE INDEX "NoteHistory_noteId_version_key" ON "NoteHistory"("noteId", "version");
+
+-- CreateIndex
+CREATE INDEX "NoteHistory_noteId_createdAt_idx" ON "NoteHistory"("noteId", "createdAt" DESC);
+
+-- CreateIndex
+CREATE INDEX "NoteHistory_userId_noteId_createdAt_idx" ON "NoteHistory"("userId", "noteId", "createdAt" DESC);
+
+-- AddForeignKey
+ALTER TABLE "NoteHistory" ADD CONSTRAINT "NoteHistory_noteId_fkey" FOREIGN KEY ("noteId") REFERENCES "Note"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "NoteHistory" ADD CONSTRAINT "NoteHistory_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;