Record published Windows download and local installation

docs/ROADMAP.md

@@ -6,6 +6,8 @@ Karl's release priority, 2026-10-13: publish a usable first Windows version and
 install it on DEV-WIN11 now. Extensive platform/GPU, clean-machine, signing and
 large-library checks are deferred follow-up, not blockers for this initial
 release. Keep their evidence and unchecked production gates intact.
+- [x] Publish v0.1.0 Windows installer/checksum, verify public download bytes,
+  install on DEV-WIN11 and leave the app running with a desktop launcher.
 
 ## Required product scope (user clarification)
 

docs/WINDOWS-FIRST-RELEASE.md

@@ -123,3 +123,16 @@ handle 8324222) and its packaged query worker (PID 19864), using one CPU thread
 and the independent cache. A desktop shortcut was created. This demonstrates
 local installation/startup and package selection, not a clean-machine test or
 native visual interaction audit. The app is left running for Karl to use.
+
+## Published download
+
+[v0.1.0](https://tea.karlcom.de/karl/searchi/releases/tag/v0.1.0) is published
+as an initial Windows prerelease, targeting commit `d4f7e39`. The installer and
+its SHA256SUMS.txt are publicly downloadable. Both were streamed again without
+credentials and matched their complete byte counts and SHA-256 values; the
+installer digest is the one recorded above. The release tag's remote Git SHA
+also matches the intended commit. Gitea Actions remain disabled.
+
+The 145 MB portable ZIP was rejected with HTTP 413 by the server upload limit.
+It remains a verified local artifact; this release publishes only the 99 MB
+installer and its checksum. No server limits were changed.