merge: combine all features from both codebases - mobile dashboard + layer panel + notifications + shares + all fixes

backend/src/database/schema.sql

@@ -99,6 +99,25 @@ CREATE TABLE IF NOT EXISTS settings (
   updated_at TEXT NOT NULL DEFAULT (datetime('now'))
 );
 
+-- ─── Project Folders ───────────────────────────────────
+CREATE TABLE IF NOT EXISTS project_folders (
+  id TEXT PRIMARY KEY,
+  name TEXT NOT NULL,
+  parent_id TEXT,
+  owner_id TEXT NOT NULL,
+  created_at TEXT DEFAULT (datetime('now')),
+  FOREIGN KEY (parent_id) REFERENCES project_folders(id) ON DELETE CASCADE,
+  FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_project_folders_parent ON project_folders(parent_id);
+CREATE INDEX IF NOT EXISTS idx_project_folders_owner ON project_folders(owner_id);
+
+-- ─── Projects: add folder_id column ─────────────────────
+-- NOTE: ALTER TABLE is idempotent-safe via try/catch in adapter; schema.sql
+-- is only exec'd on fresh databases. For existing DBs, the adapter runs
+-- the ALTER in init().
+
 -- ─── Indexes ────────────────────────────────────────
 CREATE INDEX IF NOT EXISTS idx_drawings_project ON drawings(project_id);
 CREATE INDEX IF NOT EXISTS idx_layers_drawing ON layers(drawing_id);
@@ -133,3 +152,27 @@ CREATE INDEX IF NOT EXISTS idx_blocks_drawing ON blocks(drawing_id);
  
  CREATE INDEX IF NOT EXISTS idx_notifications_user ON notifications(user_id);
  CREATE INDEX IF NOT EXISTS idx_shares_project ON project_shares(project_id);
+
+-- ─── Global Block Folders ─────────────────────────────
+CREATE TABLE IF NOT EXISTS global_block_folders (
+  id TEXT PRIMARY KEY,
+  name TEXT NOT NULL,
+  parent_id TEXT,
+  created_at TEXT NOT NULL DEFAULT (datetime('now')),
+  FOREIGN KEY (parent_id) REFERENCES global_block_folders(id) ON DELETE CASCADE
+);
+
+-- ─── Global Blocks ──────────────────────────────────────
+CREATE TABLE IF NOT EXISTS global_blocks (
+  id TEXT PRIMARY KEY,
+  folder_id TEXT,
+  name TEXT NOT NULL,
+  block_data TEXT NOT NULL DEFAULT '{}',
+  svg_data TEXT,
+  created_at TEXT NOT NULL DEFAULT (datetime('now')),
+  updated_at TEXT NOT NULL DEFAULT (datetime('now')),
+  FOREIGN KEY (folder_id) REFERENCES global_block_folders(id) ON DELETE SET NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_global_blocks_folder ON global_blocks(folder_id);
+CREATE INDEX IF NOT EXISTS idx_global_block_folders_parent ON global_block_folders(parent_id);