v3.7.7

### ✨ New Features

- **feat(docs):** integrate multi-page documentation into OmniRoute dashboard (#1969)
- **feat(settings):** add request body limit setting (#1968)
- **feat(auth):** add Gemini CLI OAuth client secret default (#1974)
- **feat(models):** expose models.dev context windows in /v1/models (#1972)
- **fix(db):** resolve legacy encryption fallback causing re-encryption loops (#1941)
- **fix(auth):** fix Codex assistant final_answer response sanitization (#1965)

- **Prompt Compression Pipeline:** Implemented a multi-phase prompt compression engine including `lite` (whitespace/duplication collapse), `aggressive` (summarization, tool compression), and `ultra` modes (heuristic pruning and SLM stub) (#1633, #1738, #1739, #1741)
- **Compression Dashboard & Analytics:** Added a compression settings UI, real-time log viewer, pipeline statistics tracking, and interactive playground preview (#1756)
- **Compression Caching & MCP:** Added caching-aware strategy adjustments to the compression pipeline, alongside new MCP tools for status and configuration (#1758)
- **Analytics Custom Filters:** Added custom date range selection, API key filtering, and NULL key analytics backfilling to the Costs Dashboard (#1830)

### 🐛 Bug Fixes

- **Combo Routing:** Fixed an issue where Gemini `-preview` models were incorrectly normalized to their canonical names, causing 404 errors during combo routing (#1834)
- **Codex Native Passthrough:** Added support for Cursor 5.5 sending `messages` arrays to the `responses/compact` endpoint, preventing upstream rejections with empty requests (#1832)
- **Rate-limit Watchdog:** Implemented a new rate-limit watchdog with environment override capabilities and Stage Tracing to prevent and diagnose silent wedges (#1828)
- **Encryption Resiliency:** Prevent sending encrypted tokens to providers by returning null on decryption failure (#763d353)
- **i18n & Locales:** Fixed OpenCode baseUrl locale placeholders and added compression keys across 32 languages
- **Startup Stability:** Hardened resilience integration server startup logic (#9aa89b17)

### 🛠️ Maintenance

- **Tests & Docs:** Expanded the test suite with 61 unit/integration tests for the compression pipeline and updated `AGENTS.md`
- **Workflow:** Fixed the changelog extraction logic to accurately capture GitHub release descriptions