docs: update README, SKILL.md, marketplace.json for v1.2.1

- Document 2025 API dataSources.update() routing in README
- Update test count to 140
- Bump marketplace.json version to 1.2.1
- Update longDescription with full feature list

Author: JordanCoin

README.md

@@ -502,11 +502,13 @@ Config is stored at `~/.config/notioncli/config.json`:
 
 The latest Notion API introduced a dual-ID system for databases. Each database now has both a `database_id` and a `data_source_id`. **notioncli handles this automatically** — when you add an alias, both IDs are discovered and stored. When you pass a raw UUID, it resolves correctly.
 
+Additionally, the 2025 API moved property management from `databases` to `dataSources`. notioncli routes `db-create` and `db-update` property changes through `dataSources.update()` automatically — the old `databases.update()` endpoint silently ignores property modifications.
+
 You don't need to think about this. It just works.
 
 ### Reliability
 
-- 139 unit tests
+- 140 unit tests
 - Tested against live Notion workspaces
 - Designed to fail loudly and safely when filters match zero or multiple pages
 

skill/marketplace.json

@@ -2,14 +2,14 @@
   "id": "notioncli",
   "name": "notioncli — Notion CLI",
   "description": "Query databases, manage pages, explore relations, and edit blocks in your Notion workspace from the terminal.",
-  "longDescription": "A powerful CLI for the Notion API built for both humans and AI agents. Auto-discovers databases and creates aliases so you never type UUIDs. Supports querying, filtering, sorting, creating, updating, deleting pages, comments, and appending content. Works with Notion's 2025 dual-ID API. Zero-UUID workflow via alias + filter on every command.",
+  "longDescription": "A powerful CLI for the Notion API built for both humans and AI agents. Auto-discovers databases and creates aliases so you never type UUIDs. Full CRUD: query, add, update, delete, get, search. Relations & rollups, blocks CRUD, multi-workspace profiles, database management (db-create, db-update), file uploads, templates, page moves. Correctly routes property changes through dataSources.update() for the 2025 Notion API. Zero-UUID workflow via alias + filter on every command.",
   "category": "Productivity",
   "price": 0,
   "icon": "📝",
   "author": "JordanCoin",
   "authorUrl": "https://github.com/JordanCoin",
   "repository": "https://github.com/JordanCoin/notioncli",
-  "version": "1.1.0",
+  "version": "1.2.1",
   "tags": ["notion", "cli", "api", "database", "productivity", "workspace", "automation", "ai-agent"],
   "requirements": ["Node.js >= 18", "Notion API key (free)"],
   "optional": []