feat: migrate semantic search to pgvector + full-text search

Replace JSON-string embeddings with native pgvector(1536) storage and
add PostgreSQL full-text search (tsvector/GIN) with Reciprocal Rank Fusion
for hybrid keyword + semantic ranking.

Changes:
- NoteEmbedding.embedding: String → vector(1536) via pgvector
- NoteEmbedding: added updatedAt for reindex tracking
- Note: added tsv (tsvector) with auto-update trigger for FTS
- semantic-search.service: hybrid FTS + vector search with RRF fusion
- embedding.service: toVectorString() for pgvector SQL literals
- Removed JS-side cosine similarity loops (now DB-side via <=>)
- Added HNSW index on NoteEmbedding.embedding (cosine distance)
- Added GIN index on Note.tsv for FTS queries

Schema migration in: prisma/migrations/20260512120000_pgvector_and_fts_search/

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

architectural-grid10/src/App.tsx

@@ -0,0 +1,450 @@
+/**
+ * @license
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import React, { useState, useMemo } from 'react';
+import { motion, AnimatePresence } from 'motion/react';
+
+// Components
+import { Sidebar } from './components/Sidebar';
+import { NotebooksView } from './components/NotebooksView';
+import { AgentsView } from './components/AgentsView';
+import { SettingsView } from './components/SettingsView';
+import { TrashView } from './components/TrashView';
+import { AISidebar } from './components/AISidebar';
+import { SlashMenu } from './components/SlashMenu';
+
+// Data & Types
+import { CARNETS, ALL_NOTES } from './constants';
+import { NavigationView, SettingsTab, AITab, AITone, Carnet, Note } from './types';
+
+export default function App() {
+  const [activeView, setActiveView] = useState<NavigationView>('notebooks');
+  const [activeSettingsTab, setActiveSettingsTab] = useState<SettingsTab>('general');
+  const [selectedAgentId, setSelectedAgentId] = useState<string | null>(null);
+  const [isDarkMode, setIsDarkMode] = useState(false);
+  const [carnets, setCarnets] = useState<Carnet[]>(CARNETS);
+  const [notes, setNotes] = useState<Note[]>(ALL_NOTES);
+  const [activeCarnetId, setActiveCarnetId] = useState('4');
+  const [activeNoteId, setActiveNoteId] = useState<string | null>(null);
+  const [selectedTagIds, setSelectedTagIds] = useState<string[]>([]);
+  const [isAISidebarOpen, setIsAISidebarOpen] = useState(false);
+  const [aiTab, setAiTab] = useState<AITab>('discussion');
+  const [selectedTone, setSelectedTone] = useState<AITone>('Professional');
+  
+  // Modal States
+  const [showNewCarnetModal, setShowNewCarnetModal] = useState<{ isOpen: boolean; parentId?: string; isRenaming?: boolean; carnetId?: string }>({ isOpen: false });
+  const [showNewNoteModal, setShowNewNoteModal] = useState(false);
+  const [slashMenu, setSlashMenu] = useState<{ isOpen: boolean; top: number; left: number } | null>(null);
+  
+  // Form States
+  const [newCarnetName, setNewCarnetName] = useState('');
+  const [newNoteTitle, setNewNoteTitle] = useState('');
+  const [newNoteContent, setNewNoteContent] = useState('');
+
+  const handleEditorKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === '/') {
+      const selection = window.getSelection();
+      if (selection && selection.rangeCount > 0) {
+        const range = selection.getRangeAt(0);
+        const rect = range.getBoundingClientRect();
+        setSlashMenu({
+          isOpen: true,
+          top: rect.bottom + window.scrollY,
+          left: rect.left + window.scrollX
+        });
+      }
+    }
+  };
+
+  const togglePin = (noteId: string) => {
+    setNotes(notes.map(n => n.id === noteId ? { ...n, isPinned: !n.isPinned } : n));
+  };
+
+  const filteredNotes = useMemo(() => {
+    let result = notes.filter(n => n.carnetId === activeCarnetId && !n.isDeleted);
+    
+    if (selectedTagIds.length > 0) {
+      result = result.filter(note => 
+        selectedTagIds.every(tagId => note.tags?.some(tag => tag.id === tagId))
+      );
+    }
+
+    return [...result].sort((a, b) => {
+      if (a.isPinned && !b.isPinned) return -1;
+      if (!a.isPinned && b.isPinned) return 1;
+      return 0;
+    });
+  }, [activeCarnetId, notes]);
+
+  const activeNote = useMemo(() => 
+    notes.find(n => n.id === activeNoteId),
+  [activeNoteId, notes]);
+
+  const activeCarnet = useMemo(() => 
+    carnets.find(c => c.id === activeCarnetId),
+  [activeCarnetId, carnets]);
+
+  const handleAddCarnet = (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!newCarnetName.trim()) return;
+    
+    if (showNewCarnetModal.isRenaming && showNewCarnetModal.carnetId) {
+      setCarnets(carnets.map(c => c.id === showNewCarnetModal.carnetId ? { ...c, name: newCarnetName, initial: newCarnetName.charAt(0).toUpperCase() } : c));
+      setShowNewCarnetModal({ isOpen: false });
+      setNewCarnetName('');
+      return;
+    }
+
+    const newCarnet: Carnet = {
+      id: Date.now().toString(),
+      name: newCarnetName,
+      initial: newCarnetName.charAt(0).toUpperCase(),
+      type: 'Project',
+      parentId: showNewCarnetModal.parentId
+    };
+    
+    setCarnets([...carnets, newCarnet]);
+    setNewCarnetName('');
+    setShowNewCarnetModal({ isOpen: false });
+    setActiveCarnetId(newCarnet.id);
+  };
+
+  const handleDeleteCarnet = (id: string) => {
+    if (window.confirm('Déplacer ce carnet et ses sous-carnets vers la corbeille ?')) {
+      const idsToDelete = new Set<string>([id]);
+      
+      const addChildren = (parentId: string) => {
+        carnets.forEach(c => {
+          if (c.parentId === parentId) {
+            idsToDelete.add(c.id);
+            addChildren(c.id);
+          }
+        });
+      };
+      addChildren(id);
+      
+      const deletedAt = new Date().toISOString();
+      setCarnets(carnets.map(c => idsToDelete.has(c.id) ? { ...c, isDeleted: true, deletedAt } : c));
+      setNotes(notes.map(n => idsToDelete.has(n.carnetId) ? { ...n, isDeleted: true, deletedAt } : n));
+      
+      if (idsToDelete.has(activeCarnetId)) {
+        setActiveCarnetId('1');
+      }
+    }
+  };
+
+  const handleDeleteNote = (id: string) => {
+    const deletedAt = new Date().toISOString();
+    setNotes(notes.map(n => n.id === id ? { ...n, isDeleted: true, deletedAt } : n));
+    if (activeNoteId === id) setActiveNoteId(null);
+  };
+
+  const handleRestoreCarnet = (id: string) => {
+    setCarnets(carnets.map(c => c.id === id ? { ...c, isDeleted: false, deletedAt: undefined } : c));
+    // Optionally restore linked notes too? User might expect that.
+    setNotes(notes.map(n => n.carnetId === id ? { ...n, isDeleted: false, deletedAt: undefined } : n));
+  };
+
+  const handleRestoreNote = (id: string) => {
+    setNotes(notes.map(n => n.id === id ? { ...n, isDeleted: false, deletedAt: undefined } : n));
+  };
+
+  const handlePermanentDeleteNote = (id: string) => {
+    setNotes(notes.filter(n => n.id !== id));
+  };
+
+  const handlePermanentDeleteCarnet = (id: string) => {
+    const idsToDelete = new Set<string>([id]);
+    const addChildren = (parentId: string) => {
+      carnets.forEach(c => {
+        if (c.parentId === parentId) {
+          idsToDelete.add(c.id);
+          addChildren(c.id);
+        }
+      });
+    };
+    addChildren(id);
+    setCarnets(carnets.filter(c => !idsToDelete.has(c.id)));
+    setNotes(notes.filter(n => !idsToDelete.has(n.carnetId)));
+  };
+
+  const handleAddNote = (e: React.FormEvent) => {
+    e.preventDefault();
+    if (!newNoteTitle.trim() || !newNoteContent.trim()) return;
+
+    const newNote: Note = {
+      id: `n-${Date.now()}`,
+      carnetId: activeCarnetId,
+      title: newNoteTitle,
+      date: new Intl.DateTimeFormat('en-US', { month: 'short', day: 'numeric', year: 'numeric' }).format(new Date()),
+      content: newNoteContent,
+      imageUrl: 'https://images.unsplash.com/photo-1487958449943-2429e8be8625?auto=format&fit=crop&q=80&w=800&h=600',
+      tags: []
+    };
+
+    setNotes([newNote, ...notes]);
+    setNewNoteTitle('');
+    setNewNoteContent('');
+    setShowNewNoteModal(false);
+    setActiveNoteId(newNote.id);
+  };
+
+  return (
+    <div className={`h-screen flex bg-paper transition-colors duration-500 overflow-hidden font-sans ${isDarkMode ? 'dark' : ''}`}>
+      <Sidebar 
+        activeView={activeView}
+        isDarkMode={isDarkMode}
+        setIsDarkMode={setIsDarkMode}
+        setActiveView={setActiveView}
+        carnets={carnets}
+        notes={notes}
+        activeCarnetId={activeCarnetId}
+        activeNoteId={activeNoteId}
+        setActiveCarnetId={setActiveCarnetId}
+        setActiveNoteId={setActiveNoteId}
+        setShowNewCarnetModal={(show, parentId, isRenaming, carnetId) => {
+          setShowNewCarnetModal({ isOpen: show, parentId, isRenaming, carnetId });
+          if (isRenaming && carnetId) {
+            const carnet = carnets.find(c => c.id === carnetId);
+            if (carnet) setNewCarnetName(carnet.name);
+          } else {
+            setNewCarnetName('');
+          }
+        }}
+        onDeleteCarnet={handleDeleteCarnet}
+      />
+
+      <main className="flex-1 relative overflow-hidden flex bg-paper dark:bg-dark-paper transition-colors duration-500">
+        <AnimatePresence mode="wait">
+          {(activeView === 'notebooks' || activeView === 'shared' || activeView === 'reminders') && (
+            <motion.div
+              key={activeView}
+              initial={{ opacity: 0, x: 20 }}
+              animate={{ opacity: 1, x: 0 }}
+              exit={{ opacity: 0, x: -20 }}
+              transition={{ duration: 0.3 }}
+              className="h-full w-full"
+            >
+              <NotebooksView 
+                activeNoteId={activeNoteId}
+                activeCarnet={activeCarnet}
+                filteredNotes={filteredNotes}
+                activeNote={activeNote}
+                setActiveNoteId={setActiveNoteId}
+                togglePin={togglePin}
+                setShowNewNoteModal={setShowNewNoteModal}
+                isAISidebarOpen={isAISidebarOpen}
+                setIsAISidebarOpen={setIsAISidebarOpen}
+                selectedTagIds={selectedTagIds}
+                setSelectedTagIds={setSelectedTagIds}
+                allNotes={notes}
+                activeCarnetId={activeCarnetId}
+                setShowNewCarnetModal={(show, parentId, isRenaming, carnetId) => setShowNewCarnetModal({ isOpen: show, parentId, isRenaming, carnetId })}
+                onDeleteNote={handleDeleteNote}
+              />
+            </motion.div>
+          )}
+
+          {activeView === 'trash' && (
+            <motion.div
+              key="trash"
+              initial={{ opacity: 0, x: 20 }}
+              animate={{ opacity: 1, x: 0 }}
+              exit={{ opacity: 0, x: -20 }}
+              transition={{ duration: 0.3 }}
+              className="h-full w-full"
+            >
+              <TrashView 
+                deletedNotes={notes.filter(n => n.isDeleted)}
+                deletedCarnets={carnets.filter(c => c.isDeleted)}
+                onRestoreNote={handleRestoreNote}
+                onRestoreCarnet={handleRestoreCarnet}
+                onPermanentDeleteNote={handlePermanentDeleteNote}
+                onPermanentDeleteCarnet={handlePermanentDeleteCarnet}
+                onEmptyTrash={() => {
+                  setNotes(notes.filter(n => !n.isDeleted));
+                  setCarnets(carnets.filter(c => !c.isDeleted));
+                }}
+              />
+            </motion.div>
+          )}
+
+          {activeView === 'agents' && (
+            <motion.div
+              key="agents"
+              initial={{ opacity: 0, x: 20 }}
+              animate={{ opacity: 1, x: 0 }}
+              exit={{ opacity: 0, x: -20 }}
+              transition={{ duration: 0.3 }}
+              className="h-full w-full"
+            >
+              <AgentsView 
+                selectedAgentId={selectedAgentId}
+                setSelectedAgentId={setSelectedAgentId}
+                carnets={carnets}
+              />
+            </motion.div>
+          )}
+
+          {activeView === 'settings' && (
+            <motion.div
+              key="settings"
+              initial={{ opacity: 0, x: 20 }}
+              animate={{ opacity: 1, x: 0 }}
+              exit={{ opacity: 0, x: -20 }}
+              transition={{ duration: 0.3 }}
+              className="h-full w-full"
+            >
+              <SettingsView 
+                activeSettingsTab={activeSettingsTab}
+                setActiveSettingsTab={setActiveSettingsTab}
+              />
+            </motion.div>
+          )}
+        </AnimatePresence>
+
+        <AISidebar 
+          isOpen={isAISidebarOpen}
+          setIsOpen={setIsAISidebarOpen}
+          activeNote={activeNote}
+          aiTab={aiTab}
+          setAiTab={setAiTab}
+          selectedTone={selectedTone}
+          setSelectedTone={setSelectedTone}
+          carnets={carnets}
+        />
+      </main>
+
+      {/* Modals */}
+      <AnimatePresence>
+        {showNewCarnetModal.isOpen && (
+          <div className="fixed inset-0 z-50 flex items-center justify-center p-4">
+            <motion.div 
+              initial={{ opacity: 0 }}
+              animate={{ opacity: 1 }}
+              exit={{ opacity: 0 }}
+              onClick={() => setShowNewCarnetModal({ isOpen: false })}
+              className="absolute inset-0 bg-ink/40 backdrop-blur-sm"
+            />
+            <motion.div
+              initial={{ opacity: 0, scale: 0.9, y: 20 }}
+              animate={{ opacity: 1, scale: 1, y: 0 }}
+              exit={{ opacity: 0, scale: 0.9, y: 20 }}
+              className="relative w-full max-w-md bg-paper dark:bg-dark-paper border border-border shadow-2xl rounded-2xl p-8"
+            >
+              <h3 className="text-2xl font-serif font-medium text-ink dark:text-dark-ink mb-2">
+                {showNewCarnetModal.isRenaming ? 'Rename Carnet' : (showNewCarnetModal.parentId ? 'Create Sub-Carnet' : 'Create New Carnet')}
+              </h3>
+              {showNewCarnetModal.parentId && !showNewCarnetModal.isRenaming && (
+                <p className="text-[10px] text-concrete uppercase tracking-widest font-bold mb-6">
+                  Inside: {carnets.find(c => c.id === showNewCarnetModal.parentId)?.name}
+                </p>
+              )}
+              <form onSubmit={handleAddCarnet} className="space-y-6">
+                <div>
+                  <label className="block text-[11px] uppercase tracking-widest font-bold text-muted-ink mb-2">Notebook Name</label>
+                  <input 
+                    autoFocus
+                    type="text" 
+                    value={newCarnetName}
+                    onChange={(e) => setNewCarnetName(e.target.value)}
+                    placeholder="E.g., Sustainable Patterns"
+                    className="w-full bg-white dark:bg-[#2A2A2A] border border-border rounded-lg px-4 py-3 outline-none focus:border-ink transition-colors font-serif italic text-lg text-ink dark:text-dark-ink"
+                  />
+                </div>
+                <div className="flex gap-4 pt-4">
+                  <button 
+                    type="button"
+                    onClick={() => {
+                      setShowNewCarnetModal({ isOpen: false });
+                      setNewCarnetName('');
+                    }}
+                    className="flex-1 py-3 border border-border rounded-lg text-sm font-medium hover:bg-slate-50 dark:hover:bg-white/5 transition-colors text-ink dark:text-dark-ink"
+                  >
+                    Cancel
+                  </button>
+                  <button 
+                    type="submit"
+                    className="flex-1 py-3 bg-ink dark:bg-ochre text-paper rounded-lg text-sm font-medium hover:opacity-90 transition-opacity"
+                  >
+                    {showNewCarnetModal.isRenaming ? 'Rename' : 'Create Notebook'}
+                  </button>
+                </div>
+              </form>
+            </motion.div>
+          </div>
+        )}
+
+        {showNewNoteModal && (
+          <div className="fixed inset-0 z-50 flex items-center justify-center p-4">
+            <motion.div 
+              initial={{ opacity: 0 }}
+              animate={{ opacity: 1 }}
+              exit={{ opacity: 0 }}
+              onClick={() => setShowNewNoteModal(false)}
+              className="absolute inset-0 bg-ink/40 backdrop-blur-sm"
+            />
+            <motion.div
+              initial={{ opacity: 0, scale: 0.9, y: 20 }}
+              animate={{ opacity: 1, scale: 1, y: 0 }}
+              exit={{ opacity: 0, scale: 0.9, y: 20 }}
+              className="relative w-full max-w-2xl bg-paper dark:bg-dark-paper border border-border shadow-2xl rounded-2xl p-10"
+            >
+              <AnimatePresence>
+                {slashMenu?.isOpen && (
+                  <SlashMenu 
+                    position={{ top: slashMenu.top, left: slashMenu.left }}
+                    onSelect={(type) => { console.log(type); setSlashMenu(null); }}
+                    onClose={() => setSlashMenu(null)}
+                  />
+                )}
+              </AnimatePresence>
+              <h3 className="text-3xl font-serif font-medium text-ink dark:text-dark-ink mb-8">Add Architectural Note</h3>
+              <form onSubmit={handleAddNote} className="space-y-8">
+                <div>
+                  <label className="block text-[11px] uppercase tracking-widest font-bold text-muted-ink mb-2">Concept Title</label>
+                  <input 
+                    autoFocus
+                    type="text" 
+                    value={newNoteTitle}
+                    onChange={(e) => setNewNoteTitle(e.target.value)}
+                    placeholder="Enter the title of your study..."
+                    className="w-full bg-white dark:bg-[#2A2A2A] border border-border rounded-lg px-5 py-4 outline-none focus:border-ink transition-colors font-serif text-2xl text-ink dark:text-dark-ink"
+                  />
+                </div>
+                <div>
+                  <label className="block text-[11px] uppercase tracking-widest font-bold text-muted-ink mb-2">Observations & Analysis</label>
+                  <textarea 
+                    value={newNoteContent}
+                    onChange={(e) => setNewNoteContent(e.target.value)}
+                    onKeyDown={handleEditorKeyDown}
+                    placeholder="Describe the spatial logic, materiality, and light interactions... (Type '/' for commands)"
+                    rows={6}
+                    className="w-full bg-white dark:bg-[#2A2A2A] border border-border rounded-lg px-5 py-4 outline-none focus:border-ink transition-colors font-light leading-relaxed resize-none text-ink dark:text-dark-ink"
+                  />
+                </div>
+                <div className="flex gap-4 pt-4">
+                  <button 
+                    type="button"
+                    onClick={() => setShowNewNoteModal(false)}
+                    className="flex-1 py-4 border border-border rounded-lg text-sm font-medium hover:bg-slate-50 dark:hover:bg-white/5 transition-colors text-ink dark:text-dark-ink"
+                  >
+                    Cancel
+                  </button>
+                  <button 
+                    type="submit"
+                    className="flex-1 py-4 bg-ink dark:bg-ochre text-paper rounded-lg text-sm font-medium hover:opacity-90 transition-opacity"
+                  >
+                    Save Note
+                  </button>
+                </div>
+              </form>
+            </motion.div>
+          </div>
+        )}
+      </AnimatePresence>
+    </div>
+  );
+}