.NET 10.0 Preview 7

@normj

Repos

Fix typo in sdk.md by @normj in #9977
API Diff between .NET 10.0 Preview 5 and Preview 6 by @ericstj in #9976
Fix file-based app headings in preview.6 release notes by @DamianEdwards in #9975
July2025 sdk only by @victorisr in #9978
Update releases-index.json by @victorisr in #9979
Remove note about Current by @richlander in #9982
Update 9.0.303.md by @victorisr in #9983
Fix APIDiff to include NETCore references for AspNetCore and WindowsDesktop by @Copilot in #9989
Fix Preview 6 release date by @usta in #9984
fix releases index channel 2.2 security by @ondrejsmid in #10009
Regenerate diffs for 10.0 previews 1-5 by @ericstj in #10013
Add API Diff for Preview 7 by @ericstj in #10014
.NET Aug2025 8A servicing release Updates by @victorisr in #10016
Update Placeholder Links by @victorisr in #10018
Update release.json by @victorisr in #10020
Improve codefence in JSON snippet by @martincostello in #9973
Remove references to Debian 13 Trixie container images by @lbussell in #10025
Users/merlinbot/1es pt auto baselining pr by @mairaw in #9992
Add release notes for .NET 10 Preview 7 across various components by @jamesmontemagno in #10006
Fix link by @martincostello in #10031

Full Changelog: v10.0.0-preview.6...v10.0.0-preview.7