feat(documents): add family document management

server/db.js

@@ -810,6 +810,49 @@ const MIGRATIONS = [
       CREATE INDEX IF NOT EXISTS idx_tasks_parent         ON tasks(parent_task_id);
     `,
   },
+  {
+    version: 26,
+    description: 'Family documents with local storage metadata and visibility ACL',
+    up: `
+      CREATE TABLE IF NOT EXISTS family_documents (
+        id               INTEGER PRIMARY KEY AUTOINCREMENT,
+        name             TEXT    NOT NULL,
+        description      TEXT,
+        category         TEXT    NOT NULL DEFAULT 'other'
+                                  CHECK(category IN ('medical', 'school', 'identity', 'insurance', 'finance', 'home', 'vehicle', 'legal', 'travel', 'pets', 'warranty', 'taxes', 'work', 'other')),
+        status           TEXT    NOT NULL DEFAULT 'active'
+                                  CHECK(status IN ('active', 'archived')),
+        visibility       TEXT    NOT NULL DEFAULT 'family'
+                                  CHECK(visibility IN ('family', 'restricted', 'private')),
+        original_name    TEXT    NOT NULL,
+        mime_type        TEXT    NOT NULL,
+        file_size        INTEGER NOT NULL,
+        content_data     TEXT    NOT NULL,
+        storage_provider TEXT    NOT NULL DEFAULT 'local'
+                                  CHECK(storage_provider IN ('local', 'external')),
+        storage_key      TEXT,
+        created_by       INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+        created_at       TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+        updated_at       TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+      );
+
+      CREATE TABLE IF NOT EXISTS family_document_access (
+        document_id INTEGER NOT NULL REFERENCES family_documents(id) ON DELETE CASCADE,
+        user_id     INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+        created_at  TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+        PRIMARY KEY (document_id, user_id)
+      );
+
+      CREATE TRIGGER IF NOT EXISTS trg_family_documents_updated_at
+        AFTER UPDATE ON family_documents FOR EACH ROW
+        BEGIN UPDATE family_documents SET updated_at = strftime('%Y-%m-%dT%H:%M:%SZ', 'now') WHERE id = OLD.id; END;
+
+      CREATE INDEX IF NOT EXISTS idx_family_documents_status     ON family_documents(status);
+      CREATE INDEX IF NOT EXISTS idx_family_documents_category   ON family_documents(category);
+      CREATE INDEX IF NOT EXISTS idx_family_documents_created_by ON family_documents(created_by);
+      CREATE INDEX IF NOT EXISTS idx_family_document_access_user ON family_document_access(user_id);
+    `,
+  },
 ];
 
 /**