Add /report-bug page for autorouting reports and fake-api support

[seveibar]

Motivation

• Provide a UI at /report-bug so users can submit autorouting bug reports including full Circuit JSON uploads and a clear path for project bug reports.

Description

• Add a new page src/pages/report-bug.tsx implementing a two-tab UI with an "Autorouting Bug Report" form that accepts Circuit JSON files, validates the file shape, and POSTs to /autorouting/bug_reports/create.
• Wire the page into the app router by lazily importing and adding the /report-bug route in src/App.tsx.
• Add a minimal fake API endpoint fake-snippets-api/routes/api/autorouting/bug_reports/create.ts that validates the request and returns a stubbed autorouting_bug_report response for development.
• Add an integration test bun-tests/fake-snippets-api/routes/autorouting/bug_reports/create.test.ts to exercise the fake endpoint.

Testing

• Ran TypeScript typecheck with bunx tsc --noEmit and it completed successfully.
• Ran formatter with bun run format and applied formatting successfully.
• Ran the fake API test suite with bun test fake-snippets-api which passed (tests executed; fake-api tests including the new autorouting/bug_reports/create test succeeded).

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Codex Task

[github-actions]

This PR has been automatically marked as stale because it has had no recent activity. It will be closed if no further activity occurs.

[github-actions]

This PR was closed because it has been inactive for 1 day since being marked as stale.