feat(release): prepare first public preview

.gitea/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report reproducible behavior that looks wrong
+title: "[Bug] "
+labels: ""
+---
+
+## What happened?
+
+<!-- Describe the visible problem. -->
+
+## What did you expect?
+
+<!-- Describe the expected result. -->
+
+## How can we reproduce it?
+
+1.
+2.
+3.
+
+## Environment
+
+- Magent version/tag:
+- Container image digest, if applicable:
+- Installation method (Compose, Portainer, docker run, native):
+- Host OS and CPU architecture:
+- Browser and version:
+- Reverse proxy, if applicable:
+- Connected app and version involved:
+
+## Sanitized diagnostics
+
+<!-- Paste the smallest relevant error/log excerpt. Redact private addresses and user data. -->
+
+- [ ] I searched existing issues and the troubleshooting guides.
+- [ ] I reproduced this on the current public preview.
+- [ ] I removed passwords, tokens, API keys, cookies, email addresses, private URLs and personal data.
+- [ ] I did not attach an `.env`, database, backup or generated secrets file.
+- [ ] This is not a security vulnerability. Security reports follow `SECURITY.md`.

.gitea/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an improvement to Magent
+title: "[Feature] "
+labels: ""
+---
+
+## Problem
+
+<!-- Who has this problem, and what are they trying to do? -->
+
+## Desired outcome
+
+<!-- Describe the user-visible result. -->
+
+## Current workaround
+
+<!-- How do you handle it today? -->
+
+## Relevant integration
+
+<!-- If this needs another app, include its name, version and public API docs. -->
+
+## Additional context
+
+<!-- Mockups and synthetic examples are welcome. Remove private data. -->

.gitea/ISSUE_TEMPLATE/installation_help.md

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+---
+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.

.gitea/PULL_REQUEST_TEMPLATE.md

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+## What and why
+
+<!-- Explain the user problem and the change. -->
+
+## Validation
+
+<!-- List exact commands/checks run and any skipped platform checks. -->
+
+- [ ] Backend tests pass or are not affected.
+- [ ] Frontend tests, lint, format, typecheck and build pass or are not affected.
+- [ ] Documentation and changelog are updated where needed.
+- [ ] New behavior has regression coverage.
+- [ ] No credentials, user data, databases, backups or private deployment details are included.
+
+## Compatibility
+
+<!-- Note database, configuration, container, API or upgrade effects. -->