Add changelog for introduction of FF MCP Nodes

[Steve-Mcl]

NOTE:

• Forward-dated to 25th (release day).
• Updated for 10th
• Updated for 14th
• Do not publish until MCP nodes are published to FF catalogue
  • DONE ✅

Description

Add changelog for introduction of FF MCP Nodes

Related Issue(s)

closes #3814

Checklist

• I have read the contribution guidelines
• I have considered the performance impact of these changes
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated

[github-actions]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 51.4%, saving 2.3 KB.

Filename	Before	After	Improvement	Visual comparison
src/changelog/2025/09/images/mcp-nodes.png	4.5 KB	2.2 KB	51.4%	View diff

[github-actions]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 9.8%, saving 216 B.

Filename	Before	After	Improvement	Visual comparison
src/changelog/2025/09/images/mcp-nodes.png	2.2 KB	2.0 KB	9.8%	View diff

[joepavitt]

Still awaiting FlowFuse/flowfuse#6074 to be built before we publicise our MCP work

[Steve-Mcl]

Updated to todays date, depends on feature flag for FFC catalog

[gstout52]

@Steve-Mcl I've just heard that MCP nodes are now available on all FlowFuse tiers. Good to merge?

[Steve-Mcl]

it has not been reviewed.

• the date will need updating
• the final name of the catalog as it appears in FFC instances should probably be added

[github-actions]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 71.3%, saving 21.2 KB.

Filename	Before	After	Improvement	Visual comparison
src/changelog/2025/10/images/mcp-nodes-in-catalog.png	29.8 KB	8.5 KB	71.3%	View diff

1 image did not require optimisation.

[Steve-Mcl]

I've updated the date & added links to our related content.

Obviously we should not publish until @sumitshinde-84 MCP blog article is published

[Steve-Mcl]

@gstout52 This can be published once reviewed (linked blog article is live now)