feat: theme dashboard charts and expose admin UI on HF Spaces

feat: track local-path usage and enrich analytics dashboard

feat: add usage tracking with live throughput rates and analytics dashboard

feat: surface saved endpoint models and revamp the admin UI

fix: cache-bust admin UI and show the running version

fix: make model combobox editable and searchable in Model Routing

feat: fetch models from OpenAI-compatible endpoints in admin UI

feat: numbered OpenAI-compatible endpoints admin page

feat: admin dedicated pages, pool key management, keypool quotas (#1350)

feat: add key management and provider keypool (# new feature)

Use codebase .env for server and admin config

Add ChatGPT OAuth as an OpenAI Codex provider (#1279)

Add Google Vertex AI with renewable ADC (#1193)

Prevent the admin UI from being served from cache (#1160)

Make reasoning policy provider-neutral and client-aware (#1148)

Add an explicit searchable model dropdown (#1133)

Add searchable model selection to the Admin UI (#1121)

Move runtime packages under src namespace (#1029)