Add properties param to notion_create_page/notion_update_page for real DB column support

[allocsys]

Problem

notion_create_page / notion_update_page (and their batch variants) only ever set the page title property. Everything else — entity_id, status, relations — got written as plain-text marker paragraphs in the page body instead of real Notion database columns (select/rich_text/url/etc).

Concretely: creating/updating rows in a database like a Job Leads tracker (with Status, Category, Comp / Rate, Payment Method, Apply Link columns) left every one of those columns empty — the actual info only existed as text in the page body.

Fix

Added an optional properties param (raw Notion property-value object) to:

• doCreatePage / notion_create_page / notion_create_pages_batch
• doUpdatePage / notion_update_page / notion_update_pages_batch

Callers can now pass e.g.:

{ "Status": { "select": { "name": "open" } }, "Comp / Rate": { "rich_text": [{ "text": { "content": "$10-60/hr" } }] } }

and it's merged with the existing title-only properties object before the request to Notion. On create, it's merged alongside the Name title property for database parents (ignored for page parents, which have no custom properties). On update, it's merged with any title change into the same PATCH, and correctly deferred to the final PATCH when archived: true is also set (mirrors the existing title-deferral logic, since Notion rejects block edits — but not property/archive PATCHes — on an already-archived page).

No changes needed in client.js — notionRequest already passes through arbitrary JSON bodies.

Testing

Manually verified against a real Notion database (Job Leads tracker) — properties like Status (select), Comp / Rate (rich_text), and Apply Link (url) now populate correctly instead of staying empty.