feat(tests): enhance modelTesterSession tests and add proxy logs tests

- Updated modelTesterSession tests to serialize assistant history as output_text and removed mime_type from input_file.
- Introduced new tests for stats proxy logs routes, covering paginated log retrieval and detailed log views with parsed billing details.
- Added server-driven tests for ProxyLogs component to validate API interactions and UI rendering based on server data.

CODE_OF_CONDUCT.md

@@ -15,11 +15,29 @@ We are committed to providing a welcoming, harassment-free community for everyon
 - Harassment, discrimination, or abusive language
 - Personal attacks or intimidation
 - Publishing others' private information without consent
+- Deliberate disruption, trolling, or bad-faith escalation
+- Repeatedly ignoring maintainer moderation requests
+
+## Reporting
+
+- Email `cita-777@users.noreply.github.com` with subject prefix `[metapi conduct]`.
+- Include links, screenshots, timestamps, and any context that helps reconstruct the incident.
+- If the incident is happening directly on GitHub and needs urgent platform action, also use GitHub's built-in report tools.
+- We will keep reporter details as private as practical and do not allow retaliation for good-faith reports.
 
 ## Enforcement
 
 Project maintainers are responsible for clarifying and enforcing this code of conduct.
-They may remove, edit, or reject comments, commits, code, and contributions that do not align with this policy.
+
+Possible actions include:
+
+- editing or removing comments, issues, discussions, or PR content
+- warning the contributor
+- locking threads or limiting participation in project spaces
+- rejecting contributions or blocking a contributor from repository spaces
+- escalating serious cases to GitHub or another hosting provider
+
+We aim to acknowledge conduct reports within 7 days when possible and will review the available evidence before taking action.
 
 ## Scope