feat(release): prepare first public preview

.gitea/ISSUE_TEMPLATE/installation_help.md

@@ -0,0 +1,29 @@
+---
+name: Installation help
+about: Ask for help with a documented installation path
+title: "[Install] "
+labels: ""
+---
+
+## Goal
+
+<!-- What are you trying to install, and where? -->
+
+## Method and environment
+
+- Installation guide followed:
+- Host OS and CPU architecture:
+- Docker/Compose/Portainer/Python/Node versions, as applicable:
+- Browser-facing URL scheme (`http` or `https`; redact private hostnames if needed):
+- Reverse proxy, if applicable:
+
+## Where it stopped
+
+<!-- Include the exact command/step and sanitized output. -->
+
+## Checks already tried
+
+- [ ] I checked the matching troubleshooting table.
+- [ ] I confirmed the container/service health and retained the same data path.
+- [ ] I removed credentials, tokens, cookies, private URLs and personal data.
+- [ ] I did not attach an `.env`, database, backup or generated secrets file.