T3 Code Nightly 0.0.38-nightly.20260901.1243 (b17cc3d1bf0f)

What's Changed

• feat(mobile): upload attachments while composing by @juliusmarminge in #8978
• fix(chat): keep agent activity visible between actions by @maria-rcks in #8984
• fix(server): isolate remote web session cookies by @Bil0000 in #8085
• feat(pull-requests): link GitHub references in markdown by @maria-rcks in #8812
• perf(server): reduce frequency of full tool call output being loaded into memory from db by @t3dotgg in #8988

Full Changelog: v0.0.38-nightly.20260901.1242...v0.0.38-nightly.20260901.1243