feat: editor improvements and architectural grid prototype

Multiple feature additions and improvements across the application:

- NextGen Editor: drag handles, smart paste, block actions
- Structured views: Kanban and table layouts for notes
- Architectural Grid: new brainstorming/agent interface prototype
- Flashcards: SM-2 revision algorithm with AI generation
- MCP server: robustness improvements
- Graph/PDF chat: fix click propagation and copy behavior
- Various UI/UX enhancements and bug fixes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

memento-note/components/home-client.tsx

@@ -5,14 +5,11 @@ import { useSearchParams, useRouter } from 'next/navigation'
 import dynamic from 'next/dynamic'
 import { Note } from '@/lib/types'
 import { getAllNotes, searchNotes, enableNoteHistory, getNoteById, createNote, deleteNote, togglePin, toggleArchive, updateNote, updateFullOrderWithoutRevalidation } from '@/app/actions/notes'
-import { NotesListViews, type NotesLayoutMode, type NotesClassicLayoutMode, type NotesViewType, isClassicLayoutMode } from '@/components/notes-list-views'
+import { NotesListViews, type NotesLayoutMode, type NotesClassicLayoutMode, isClassicLayoutMode } from '@/components/notes-list-views'
 import {
   NOTES_LAYOUT_STORAGE_KEY,
-  NOTES_VIEW_TYPE_STORAGE_KEY,
   parseNotesLayoutMode,
-  parseNotesViewType,
   setNotesLayoutPreference,
-  setNotesViewTypePreference,
 } from '@/lib/notes-view-preference'
 import { useNotebookSchema } from '@/hooks/use-notebook-schema'
 import {
@@ -87,14 +84,12 @@ interface HomeClientProps {
   initialNotes: Note[]
   initialSettings: InitialSettings
   initialLayoutMode?: NotesLayoutMode
-  initialViewType?: NotesViewType
 }
 
 export function HomeClient({
   initialNotes,
   initialSettings,
   initialLayoutMode = 'list',
-  initialViewType = 'notes',
 }: HomeClientProps) {
   const searchParams = useSearchParams()
   const router = useRouter()
@@ -136,7 +131,6 @@ export function HomeClient({
   const [selectedTagIds, setSelectedTagIds] = useState<string[]>([])
   const [isTagsExpanded, setIsTagsExpanded] = useState(false)
   const [tagSearchQuery, setTagSearchQuery] = useState('')
-  const [viewType, setViewType] = useState<NotesViewType>(initialViewType)
   const [layoutMode, setLayoutMode] = useState<NotesLayoutMode>(initialLayoutMode)
   const [addPropertyOpen, setAddPropertyOpen] = useState(false)
   const [isEnablingStructured, setIsEnablingStructured] = useState(false)
@@ -164,20 +158,11 @@ export function HomeClient({
 
   useEffect(() => {
     const storedLayout = parseNotesLayoutMode(localStorage.getItem(NOTES_LAYOUT_STORAGE_KEY))
-    const storedViewType = parseNotesViewType(localStorage.getItem(NOTES_VIEW_TYPE_STORAGE_KEY))
     if (storedLayout !== initialLayoutMode) {
       setLayoutMode(storedLayout)
       setNotesLayoutPreference(storedLayout)
     }
-    if (storedViewType !== initialViewType) {
-      setViewType(storedViewType)
-      setNotesViewTypePreference(storedViewType)
-    }
-  }, [initialLayoutMode, initialViewType])
-
-  useEffect(() => {
-    setNotesViewTypePreference(viewType)
-  }, [viewType])
+  }, [initialLayoutMode])
 
   useEffect(() => {
     setNotesLayoutPreference(layoutMode)
@@ -768,17 +753,20 @@ export function HomeClient({
   return (
     <div
       className={cn(
-        'flex w-full min-h-0 flex-1 flex-col gap-3 py-1'
+        'flex w-full min-h-0 flex-1 flex-col',
+        editingNote ? 'h-full overflow-hidden' : 'gap-3 py-1'
       )}
     >
       {editingNote ? (
-        <NoteEditor
-          note={editingNote.note}
-          readOnly={editingNote.readOnly}
-          onClose={handleEditorClose}
-          onNoteSaved={handleNoteSaved}
-          fullPage
-        />
+        <div className="flex flex-1 min-h-0 h-full w-full overflow-hidden">
+          <NoteEditor
+            note={editingNote.note}
+            readOnly={editingNote.readOnly}
+            onClose={handleEditorClose}
+            onNoteSaved={handleNoteSaved}
+            fullPage
+          />
+        </div>
       ) : (
         <div className="flex-1 overflow-y-auto min-h-0 bg-memento-paper dark:bg-background flex flex-col">
           <div
@@ -941,35 +929,7 @@ export function HomeClient({
                 )}
               </div>
               <div className="flex items-center gap-4 flex-wrap">
-                <div className="bg-foreground/[0.03] dark:bg-white/[0.04] p-0.5 rounded-full flex border border-border/30">
-                  <button
-                    type="button"
-                    onClick={() => setViewType('notes')}
-                    className={cn(
-                      'px-3 py-1 rounded-full text-[10px] font-bold uppercase tracking-wider transition-all',
-                      viewType === 'notes'
-                        ? 'bg-foreground text-background shadow-sm'
-                        : 'text-muted-foreground hover:text-foreground',
-                    )}
-                  >
-                    {t('notes.viewNotes')}
-                  </button>
-                  <button
-                    type="button"
-                    onClick={() => setViewType('tasks')}
-                    className={cn(
-                      'px-3 py-1 rounded-full text-[10px] font-bold uppercase tracking-wider transition-all',
-                      viewType === 'tasks'
-                        ? 'bg-foreground text-background shadow-sm'
-                        : 'text-muted-foreground hover:text-foreground',
-                    )}
-                  >
-                    {t('notes.viewTasks')}
-                  </button>
-                </div>
-
-                {viewType === 'notes' && (
-                  <div className="bg-foreground/[0.03] dark:bg-white/[0.04] p-0.5 rounded-full flex border border-border/30 items-center">
+                <div className="bg-foreground/[0.03] dark:bg-white/[0.04] p-0.5 rounded-full flex border border-border/30 items-center">
                     <button
                       type="button"
                       onClick={() => selectLayoutMode('grid')}
@@ -1043,9 +1003,8 @@ export function HomeClient({
                       </>
                     )}
                   </div>
-                )}
 
-                {viewType === 'notes' && currentNotebook && structuredModeActive && (
+                {currentNotebook && structuredModeActive && (
                   <button
                     type="button"
                     onClick={() => setAddPropertyOpen(true)}
@@ -1207,7 +1166,6 @@ export function HomeClient({
               <NotesListViews
                 notes={sortedNotes}
                 pinnedNotes={sortedPinnedNotes}
-                viewType={viewType}
                 layoutMode={classicLayoutMode}
                 onOpen={(note, readOnly) => handleOpenNoteFresh(note.id, readOnly ?? false)}
                 onOpenHistory={handleOpenHistory}