v3.4.1

> [!WARNING]
> **BREAKING CHANGE: request logging, retention, and logging environment variables have been redesigned.**
> On the first startup after upgrading, OmniRoute archives legacy request logs from `DATA_DIR/logs/`, legacy `DATA_DIR/call_logs/`, and `DATA_DIR/log.txt` into `DATA_DIR/log_archives/*.zip`, then removes the deprecated layout and switches to the new unified artifact format under `DATA_DIR/call_logs/`.

### ✨ 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)

- **feat(providers):** Implement Image Generation and Editing capabilities for ChatGPT Web, including in-band chat image generation and caching (#1606).
- **feat(ui):** Integrate OpenCode Zen/Go API tool logo SVG and polish API key copy-to-clipboard interactions (#1607).

- **feat(providers):** Integrate AgentRouter as a new OpenAI-compatible passthrough provider with $200 free credits via sign-up (Issue #1572).
- **feat(ui):** Implement on-demand per-model testing in the provider dashboard, allowing single-token diagnostic checks without triggering rate-limits (Issue #1532).

- **.ENV Migration Utility:** Included `scripts/migrate-env.mjs` to seamlessly migrate `<v3.3` configurations to `v3.4.x` strict security validation constraints (FASE-01), repairing startup crashes caused by short `JWT_SECRET` instances.
- **Kiro AI Cache Optimization:** Implemented deterministic `conversationId` generation (uuidv5) to enable AWS Builder ID Prompt Caching properly across invocations (#814).
- **Dashboard UI Restoration & Consolidation:** Resolved sidebar logic omitting the Debug section, and cleared Nextjs routing warnings by moving standalone `/dashboard/mcp` and `/dashboard/a2a` pages explicitly into embedded Endpoint Proxy UI components.
- **Unified Request Log Artifacts:** Request logging now stores one SQLite index row plus one JSON artifact per request under `DATA_DIR/call_logs/`, with optional pipeline capture embedded in the same file.
- **Language:** Improved the Chinese translation (#855)
- **Opencode-Zen Models:** Added 4 free models to opencode-zen registry (#854)
- **Tests:** Added unit and E2E tests for settings toggles and bug fixes (#850)

### 🐛 Bug Fixes

- **fix(mitm):** Compile MITM utilities as NodeNext ESM during prepublish, copy the CommonJS MITM server into the standalone artifact, and resolve MITM data paths without relying on Next.js aliases in packaged runtime.
- **fix(build):** Move the local `.tmp/wine32` Wine prefix out of the isolated Next.js build path so Windows Electron packaging artifacts cannot trigger `EACCES` scans during Node 24 builds.
- **fix(build):** Copy the `wreq-js` native runtime directory into the isolated Next.js standalone output so packaged Playwright/E2E starts can load the instrumentation hook on Linux.
- **fix(api):** Validate the Codex Responses websocket bridge and `/v1/batches` JSON payloads with Zod before use, keeping `request.json()` route validation green and returning explicit 400 responses for invalid bodies.
- **fix(providers):** Add explicit typing to provider alias and category helpers so the strict `typecheck:noimplicit:core` CI gate passes.
- **fix(ui):** Keep the upstream proxy provider detail page labeled with a fallback "Managed via Upstream Proxy Settings" management surface when translations are unavailable.
- **fix(electron):** Harden the production desktop CSP by removing `unsafe-eval` outside development and adding object, base URI, form action, frame ancestor, and worker restrictions.
- **fix(cli):** Replace shell-interpolated setup and privileged command execution paths with argument-based `spawn`/`execFile` helpers for database setup, Tailscale sudo commands, MITM DNS edits, and certificate install/uninstall flows.
- **fix(ui):** Keep provider icons resilient by using direct `@lobehub/icons` components first, then local PNG/SVG fallbacks, avoiding the `@lobehub/ui` peer runtime in the dashboard.

- **429 Quota Parsing:** Parsed long quota reset times from error bodies to honor correct backoffs and prevent rate-limited account bans (#859)
- **Prompt Caching:** Preserved client `cache_control` headers for all Claude-protocol providers (like Minimax, GLM, and Bailian), correctly recognizing caching support (#856)
- **Model Sync Logs:** Reduced log spam by recording `sync-models` only when the channel actually modifies the list (#853)
- **Provider Quota & Token Parsing:** Switched Antigravity limits to use `retrieveUserQuota` natively and correctly mapped Claude token refresh payloads to URL-encoded forms (#862)
- **Rate-Limiting Stability:** Universalized the 429 Retry-After parsing architecture to cap provider-induced cooldowns at 24 hours max (#862)
- **Dashboard Limit Rendering:** Re-architected `/dashboard/limits` quota mapping to render immediately inside chunks, fixing a major UI freezing delay on accounts exceeding 70 active connections (#784)
- **QWEN OAuth Authorization:** Mapped the OIDC `id_token` as the primary API Bearer token for Dashscope requests, fixing immediate 401 Unauthorized errors after connecting accounts or refreshing tokens (#864)
- **ZAI API Stability:** Hardened Server-Sent Events compiler to gracefully fallback to empty strings when DeepSeek providers stream mathematically null content during reasoning phases (#871)
- **Claude Code/Codex Translations:** Protected non-streaming payload conversions against empty responses from upstream Codex tools, avoiding catastrophic TypeErrors (#866)
- **NVIDIA NIM Rendering:** Conditionally stripped identical provider prefixes dynamically pushed by audio models, eliminating duplicate `nim/nim` tag structures throwing 404 on the Media Playground (#872)

### ⚠️ Breaking Changes

- **Request Log Layout:** Removed the old multi-file `DATA_DIR/logs/` request log sessions and the `DATA_DIR/log.txt` summary file. New requests are written as single JSON artifacts in `DATA_DIR/call_logs/YYYY-MM-DD/`.
- **Logging Environment Variables:** Replaced `LOG_*`, `ENABLE_REQUEST_LOGS`, `CALL_LOGS_MAX`, `CALL_LOG_PAYLOAD_MODE`, and `PROXY_LOG_MAX_ENTRIES` with the new `APP_LOG_*` and `CALL_LOG_RETENTION_DAYS` configuration model.
- **Pipeline Toggle Setting:** Replaced the legacy `detailed_logs_enabled` setting with `call_log_pipeline_enabled`. New pipeline details are embedded inside the request artifact instead of being stored as separate `request_detail_logs` records.

### 🛠️ Maintenance

- **Legacy Request Log Upgrade Backup:** Upgrades now archive old `data/logs/`, legacy `data/call_logs/`, and `data/log.txt` layouts into `DATA_DIR/log_archives/*.zip` before removing the deprecated structure.
- **Streaming Usage Persistence:** Streaming requests now write a single `usage_history` row on completion instead of emitting a duplicate in-progress usage row with empty status metadata.
- **Logging Follow-up Cleanup:** Pipeline logs no longer capture `SOURCE REQUEST`, request artifact entries now honor `CALL_LOG_MAX_ENTRIES`, and application log archives now honor `APP_LOG_MAX_FILES`.