fix: ingress ui

[rafaelsilva29]

Description

Improves Explorer UI load performance and fixes response truncation issues in the local minikube setup.

• Split Vite bundle into lazy-loaded vendor chunks, reducing main bundle from ~2.8MB to ~106KB. MASGraphView (elkjs, ~1.57MB) now only loads when the graph tab is opened
• Added api.casa.outshift.ai ingress for the auth-service, removing the nginx proxy hop inside the UI pod that was truncating large API responses
• Added proxy-buffering: off + proxy-buffer-size: 128k to all ingresses to fix ERR_INCOMPLETE_CHUNKED_ENCODING on large JS chunks and API responses
• Added PostgreSQL expression indexes on the trace table (event->>'mas_id', created_at, event_type) to speed up the /trace endpoint
• Fixed local setup script to correctly apply nginx ingress annotations after helm deploy

Type of Change

• Bugfix
• New Feature
• Breaking Change
• Refactor
• Documentation
• Other (please describe)

Checklist

• I have read the contributing guidelines
• Existing issues have been referenced (where applicable)
• I have verified this change is not present in other open pull requests
• Functionality is documented
• All code style checks pass
• New code contribution is covered by automated tests
• All new and existing tests pass