chore(mcp): align server.json with canonical 2025-12-11 schema and v0.2.0

- Bump $schema to 2025-12-11/server.schema.json (matches the URL in the
  current registry quickstart docs).
- Sync version + packages[].version to the published 0.2.0.
- Drop registryBaseUrl: not in the canonical example for npm packages
  (the registry infers it from registryType: "npm").

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

Author: ktamas77

server.json

@@ -1,8 +1,8 @@
 {
-  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
+  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
   "name": "io.github.squidcode/timebook",
   "description": "Track time, manage timers, and read your Timebook (usetimebook.com) account from any MCP client. Exposes start_timer, stop_timer, log_time, list_projects, list_clients, list_entries, get_active_timer, and whoami.",
-  "version": "0.1.4",
+  "version": "0.2.0",
   "repository": {
     "url": "https://github.com/squidcode/timebook-cli",
     "source": "github"
@@ -11,9 +11,8 @@
   "packages": [
     {
       "registryType": "npm",
-      "registryBaseUrl": "https://registry.npmjs.org",
       "identifier": "@squidcode/timebook",
-      "version": "0.1.4",
+      "version": "0.2.0",
       "transport": {
         "type": "stdio"
       },