Changelog: 8 entries

[ArthurMayoux]

Adds 8 new changelog entries:

1. Treatment Plans for Risk Analyses — Risk analyses now hold a dedicated treatment plan for each risk with its own score, treatment choice, and owner, and linked measures move it from inherent toward residual automatically.
   File: src/content/changelog/2026-08-26-treatment-plans-risk-analyses.mdx
2. NDA Uploads via PDF Drop — The compliance portal's NDA card now accepts a PDF dropped straight onto it, with download and delete controls up top and the full signature history behind an activity popover.
   File: src/content/changelog/2026-08-26-nda-pdf-upload.mdx
3. Attribution Labels on Tracker Pages — Tracker pages in the console now show whether a script is a known vendor, first party code, or still being identified, even when the underlying catalog entry has no vendor name of its own.
   File: src/content/changelog/2026-08-25-tracker-catalog-attribution.mdx
4. ChatGPT and Codex Can Now Log In to Probo's MCP — ChatGPT and Codex can connect to Probo over MCP with a real OAuth login instead of a workaround, using resource bound tokens so each connection is scoped to your Probo organization.
   File: src/content/changelog/2026-08-25-chatgpt-codex-mcp-oauth.mdx
5. New Access Review Connectors — Access Review now connects to GitHub App installations and Resend, so you can pull in access data from two more tools without setting up a workaround or a manual import.
   File: src/content/changelog/2026-08-24-new-access-review-connectors.mdx
6. More Access Review Connectors — Access Reviews now connect to Calendly and Cal.com over OAuth, including Cal.com team accounts, so scheduling tool access shows up alongside every other connector in the same review.
   File: src/content/changelog/2026-08-21-access-review-calendly-cal-com.mdx
7. authentik as an Access Review Source — Access Review can now pull user and MFA data straight from authentik, so teams running their own identity provider don't need a manual export to run a review.
   File: src/content/changelog/2026-08-18-authentik-access-review-source.mdx
8. Probot: Compliance Notifications in Slack — Employees can link their Slack identity to their Probo account with /probot login, then get compliance review and approval notifications right in Slack, complete with action buttons for each request.
   File: src/content/changelog/2026-08-18-probot-slack-bot.mdx

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