Added a confluence data center wiki tool (#996)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/wwwroot/changelog/v26.9.1.md

@@ -14,6 +14,9 @@
 - Added a way for IT departments to roll out chat templates that bring their own tools and data sources. You do not have to write any of it by hand: set the template up in the app, then export it as ready-made Lua code for your configuration plugin.
 - Added organization-wide management for tools. Among other options, IT departments can switch tools off entirely, disable individual ones, or define the provider trust a tool requires. You do not have to write any of it by hand: set a tool up in the app, then export its configuration as ready-made Lua code for your plugin, with encrypted API keys if you want them.
 - Added tool calling to the abilities you can state yourself in the expert provider settings. When you use a model AI Studio does not recognize as tool-capable, you can now declare that it is, the same way you already could for image input or reasoning. It works in the other direction as well: a model AI Studio has never heard of is offered tools, because most models can use them by now. Should one turn out not to be able to, AI Studio says so in plain words and points you to the same setting to switch the ability off again, instead of only passing the provider's error on.
+- Added a Search Confluence tool, so the AI can look things up in your organization's Confluence Data Center wiki. Set your wiki's address in the tool settings. Selecting the tool also selects Read Web Page, which the AI uses to open the pages it found. Confluence Cloud is not supported yet. Many thanks to Peer Hogeterp (`peerschuett`) for this tool.
+- Added sign-in with your operating system account to the Search Confluence tool for a wiki on your organization's network, so you do not have to enter a password. When your wiki does not accept that sign-in, AI Studio tells you so instead of reporting an empty search.
+- Added safeguards to the Search Confluence tool: it works only with a High-confidence provider, and it never follows a redirect that leads away from your wiki. Each search appears in the sources of the answer.
 - Added support for OpenAI's GPT-6 Astra.
 - Added a way to keep improving a prompt in the Prompt Optimizer. Select "Improve further" to move the latest proposal back into the prompt field, edit it the way you want, and optimize it again. Your recommendations and everything you selected stay as they are.
 - Added the context window to what AI Studio knows about a model, wherever its metadata states one.